Cerber Security & Antispam

• Some parts of the plugin code have been refactored to be in compliance with new wordpress.org plugin guidelines and requirements. Please check the WP Cerber changelog to see all the changes and new features introduced in the previous versions 9.1 and 9.2.

• New: Custom login error message. If showing the default WordPress login error message is disabled, you can optionally specify your own login error message. Available in the professional version.
• New: Custom password reset error message. If showing the default WordPress password reset error message is disabled, you can optionally specify your own password reset error message. Available in the professional version.
• Improved: Implemented Content-Security-Policy HTTP header as an extra layer of protection for the WP Cerber admin pages.
• Fixed A critical XSS vulnerability.
• Fixed: Fatal error "Call to a member function is_block_editor() on null" that occurs when attempting to load any admin page (starting with /wp-admin/) by an unauthorized request. The bug only occurs if the two following settings are configured as: "Disable dashboard redirection" is enabled and "Display 404 page" is set to "Use 404 template from the active theme".
• Fixed: No country flags are shown in some log rows while viewing WP Cerber logs on the managed website via Cerber.Hub.
• Fixed: The file viewer doesn't show the content of a file while viewing the results of a scan on the managed website via Cerber.Hub.

• New: A new feature that prevents exposing users first name, last name, and ID via an HTTP request with a username (login) in an author_name parameter.
• New: A new user status report while viewing the user activity/requests log.
• Improved: When renders admin pages, WP Cerber uses the language selected on the user profile.
• Improved: Improved the speed of rendering of the "Users" admin page. Reduced the number of HTTP requests if some columns on the page are hidden.
• Improved: Implemented support for rate limiting when the scanner retrieves checksum data from remote servers.
• Fixed: A bug that allows an attacker to bypass the "Stop user enumeration" feature if its enabled.
• Fixed: A bug that produces incorrect messages in the server error log when the WordPress database connection is lost.
• Fixed: A bug with not escaping comments in the IP access lists entries.

• New: Different alerts can be sent through different channels. You can select delivering notifications through Pushbullet and email simultaneously, Pushbullet only, or email only. The settings are configured on a per-alert basis in the alert creation form.
• New: Implemented a new "Message format" feature and setting. You can reduce the number of links in WP Cerbers messages or disable them completely to prevent sending sensitive data.
• New: Implemented separate rate limiting settings for email and Pushbullet notifications.
• New: Lockout notifications and appropriate threshold can be enabled for Pushbullet and emails separately.
• New: Email reports and alerts can be sent via a separate SMTP server configured in the WP Cerber settings.
• New: Implemented masking IP addresses and usernames (logins) in emails and mobile alerts.
• New: Disabling login language switcher. If enabled, removes language switcher on the standard WordPress login page introduced in WordPress 5.9.
• Improved: If WP Cerber is unable to load its saved settings from the website database, it uses hard-coded default values.
• Improved: If you have configured the list of prohibited usernames (logins) and the username of an existing user is among prohibited ones, the user is now shown as BLOCKED on the "Users" admin page, user edit page, Activity tab, and Live Traffic tab.
• Improved: When multiple email addresses are specified for notifications, each email will be sent separately. No multiply recipients in a single email are used anymore.
• Improved: The subjects of alerts now contain corresponding event labels.
• Improved: The subject of WP Cerbers emails have been unified. It begins with website name in square brackets plus the "WP Cerber" string.
• Improved: All test alerts and messages manually sent from the WP Cerber admin dashboard now contain *** TEST MESSAGE *** in the subject.
• Improved: Displaying detailed information about PHP generated by phpinfo(). A new link is on the Diagnostic tab in the System Info section.
• Fixed: An issue with multiple "IP blocked" in the log if the reason for a lockout is changing.
• Fixed: An issue with "Site title" containing apostrophes.

• New: A new alert creation dialog with a set of new alert settings enables you to create alerts with new limits: an expiration time, the maximum number of alerts allowed to send, and optional rate-limiting. The alert conditions can include the URL of a request now.
• New: Deleting of WordPress application passwords is logged now.
• New: Ability to monitor anti-spam, reCAPTCHA, and several other setting-specific events using links on the settings pages.
• Improved: Meaningful and actionable messages on the log screens if no activity has been found in the logs using a given search filter.
• Improved: If a WP Cerber feature requires a newer version of WordPress, such a feature will not be shown in the plugin admin interface anymore.
• Fixed: A fatal PHP error occurs while logging in on a version of WordPress older than 5.5 and a user has more than one active session.
• Fixed: A fatal PHP error occurs while using the reset password form on a version of WordPress older than 5.4.
• Fixed: While opening the Tools admin page, a PHP error might occur on some web servers.
• Fixed: While rendering the Activity tab, depending on the activities logged, the PHP warning can be logged in the server error log.
• Fixed: When managing WP Cerber on a remote website via Cerber.Hub, the admin page footer incorrectly displays the version of WP Cerber installed on the main website.
• Fixed: If the Site Title of a website contains some special characters like apostrophes, the subject of email alerts and notifications contains such characters in encoded form.

• New: A new setting for WP Cerber's anti-spam engine: "Disable bot detection engine for IP addresses in the White IP Access List".
• New: A new setting for the reCAPTCHA module: "Disable reCAPTCHA for IP addresses in the White IP Access List".
• Improved: Logging all user session terminations including those that occurred when an admin manually terminate user sessions or block users.
• Improved: If a user session has been terminated by a website admin, the admins name is logged and shown in the Activity log.
• Improved: Logging all user password changes including those made on the edit user admin page, and the WooCommerce edit account page.
• Improved: Logging application passwords changes.
• Improved: New status labels in the Activity log: "reCAPTCHA verified" is shown when a user solves reCAPTCHA successfully
• Improved: New status labels in the Activity log: "Logged out everywhere" is shown when a user has completely logged out on all devices and of all locations.
• Improved: Failed reCAPTCHA verifications are logged with form submission events they are linked to.
• Improved: A new event is logged: "Password reset request denied". With possible statuses "reCAPTCHA verification failed", "User blocked by administrator", "Username is prohibited".
• Improved: Handling reset of user passwords is improved to support changes in the WordPress core.
• Fixed: A cookie-related bug that causes a fatal software error if a user has been deleted or their password has been changed in the WordPress dashboard by the website administrator while the user is being logged in.
• Fixed: A bug with the WordPress lost password (reset password) form that prevents displaying error messages to a user.
• Fixed: When the limit on the number of allowed concurrent user sessions is set to one, an attempt to log in with the user name and incorrect password terminates the existing session of the user.
• Read more

Improved: The scanner: now checksums generated using manually uploaded ZIP archives have priority over the remote ones. Improved: You can configure exceptions for WP Cerber's anti-spam by disabling its code on selected WordPress pages. Improved: New diagnostic messages were added for better troubleshooting issues with ZIP archives uploaded in the scanner. Fixed: A vulnerability that affects WP Cerber's two-factor authentication (2FA) mechanism. Fixed: A bug that prevents uploading ZIP archives on the scan results page if the filename contains multiple dots. Fixed: Fixed admin message "Error: Sorry, that username is not allowed." which is wrongly displayed on the user edit page while updating users with prohibited usernames. Fixed: Not detecting malformed REST API requests with a question mark in this format: /wp-json?

Improved: An updated scan statistic and filtering widget. Dynamically displays the most important issues with sorting. Improved: The percentage of completion of a scanner step is shown now. Improved: Sanitizing of malformed filenames in the scanner reports has been improved to avoid possible issues with the layout of the scan results page if malware creates malformed filenames to hinder their detection. Improved: Handling of WordPress locales and versions on websites with multilanguage plugins has been improved. Improved: A missing wp-config-sample.php file is not reported as an issue in the results of the scan anymore. Improved: Handling REGEX patterns for the setting fields "Restrict email addresses" and "Prohibited usernames". Now they support REGEX quantifiers. Improved: You can specify the "User-Agent" string for requests from the main (master) Cerber.Hub website by defining the PHP constant CERBER_HUB_UA in the wp-config.php file. Improved: Diagnostic logging for network requests to the WP Cerber cloud. To enable logging, define the PHP constant CERBER_CLOUD_DEBUG in the wp-config.php file. Logging covers admin operations on the WP Cerber admin pages only. Improved: Text on the forbidden page is translatable now. Fixed bug: Some long filenames in the scan results break the layout of the scan results page, making it hard to navigate and use. Fixed bug: Unwanted file extensions are not detected if a file is identified as malicious. Fixed bug: If a file is missing, the full filename is not shown in the scan results when clicking the Show full filenames icon. Fixed bug: "PHP Deprecated: Required parameter $function follows optional parameter $pattern in /plugins/wp-cerber/cerber-scanner.php". Fixed bug: "PHP Fatal error: Call to undefined function crb_admin_hash_token() in cerber-load.php:1521". Fixed bug: "PHP Notice: Undefined property: WP_Error::$ID in cerber-load.php on line 1131". * Read more

• New: You can specify the "User-Agent" string for requests from the main (master) Cerber.Hub website by defining the PHP constant CERBER_HUB_UA in the wp-config.php file.
• New: Diagnostic logging for network requests to the WP Cerber cloud. To enable logging, define the PHP constant CERBER_CLOUD_DEBUG in the wp-config.php file. Logging covers admin operations on the WP Cerber admin pages only. Fixed bug: "PHP Fatal error: Call to undefined function crb_admin_hash_token() in cerber-load.php:1521". Fixed bug: "PHP Notice: Undefined property: WP_Error::$ID in cerber-load.php on line 1131".

• New: Quick user activity analytics (user insights) with filtering links on the Activity and Live Traffic log pages. Select a user to see how it works.
• New: Quick IP address activity and analytics (IP insights) with filtering links on the Activity and Live Traffic log pages. Select an IP address to see how it works. Improved: The selected user profile is displayed when filtering log entries by the user login or using the username search on the Activity log page. Improved: The IP address details and analytics are displayed when filtering log entries by the IP address or using the IP address search on the Activity log page. Improved: Implemented AJAX rendering of the plugin admin pages for faster loading and more convenient navigation through WP Cerbers admin pages Improved: To load the Users admin page faster, the user table columns generated by WP Cerber are now loaded via AJAX. Improved: Highlighting the selected filtering link in the navigation bar on the Activity and Live Traffic log pages. Improved: You will not see false DB errors on the Diagnostic page anymore. Fixed bug: When scanning, you can come across the software error "Process has been aborted due to server error. Check the browser console for errors." and "Too few arguments" error in the server error log.

New: Mimicking the default WordPress user authentication through the wp-login.php to detect slow brute-force attacks. New: Prevent guessing valid usernames and user emails by disabling WordPress hints in the login error message when attempting to log in with non-existing usernames and emails. New: Prevent guessing valid usernames and user emails by disabling WordPress hints in the password reset error message when attempting to reset passwords for non-existing accounts. New: Prevent username discovery via oEmbed and user XML sitemaps. New: User and malicious activity are displayed separately in two different areas on WP Cerbers main dashboard page. New: More convenient navigation through the WP Cerber admin pages by having the admin menu at the top. New: A new quick link "Login issues" to view all login issues such as failed logins, denied attempts, attempts to reset passwords, and so forth. Improved: Reduced the number of false positives when the malware scanner inspecting directives with external IP addresses in .htaccess files. Improved: Better 2FA emails: the wording of the verification email has been updated and can be translated. The email subject includes the site name. Improved: The size of the database tables used by the integrity checker and malware scanner has been reduced. Improved: Implemented a strictly secure way of utilizing the unserialize() PHP function known for being used to deliver and run malicious code. Improved: Implemented a backup way of running WP Cerber maintenance tasks if WordPress scheduled tasks are not configured properly. Fixed bug: 2FA PINs are not displayed on the edit user admin pages in the WordPress dashboard. Fixed bug: The "API request authorization failed" event was logged as "Login failed".

• New: You get control over the WordPress application passwords and the ability to monitor related events in the log with email and mobile notifications.
• New: A custom comment URL feature improves the efficiency of spam protection of the WordPress comment form. Available in the professional version of WP Cerber.
• Improved: Handling user authentication and authorization by WP Cerbers access control mechanism has been significantly improved and optimized to allow using external user authentication via third-part solutions and connectors.
• Improved: You can now specify a user message to be displayed if the configured limit to the number of concurrent user sessions has been reached and an attempt to log in is denied.
• Improved: Traffic log settings and features: "Log all REST API requests", "Log all XML-RPC requests", "Save response headers", and "Save response cookies".
• Improved: For better compatibility with different web server configurations, the anti-spam query whitelist now ignores trailing slashes if a list entry or a requested URI has no GET parameters.
• Improved: Processing of extended and invalid UTF-8 characters in the Traffic Inspector log has been improved.
• Improved: Displaying of invalid UTF-8 characters (invalid byte sequences) in the WP Cerbers logs throughout the admin interface has been improved.
• Improved: WP Cerber's dashboard code is updated and now fully jQuery 3 compatible.
• Fixed: A bug that prevented activating the Cerber.Hub master mode on PHP 8.
• Fixed: A fatal PHP error occurs while saving some WP Cerber settings when using Cerber.Hub on a remote website with Standard mode enabled.
• Fixed: A bug that generated warning messages in the web server error log: Use of undefined constant LOGGED_IN_COOKIE assumed LOGGED_IN_COOKIE
• Fixed: A bug that blocked theme preview if the anti-spam engine is enabled for all forms on the website.
• Read more

• New: Limiting the number of allowed concurrent user sessions. Depending on settings, WP Cerber will either block new logins or terminate the oldest ones.
• New: Enforcing two-factor authentication (2FA) if the number of concurrent user sessions is greater than the specified threshold.
• Improved: The integrity checker and malware scanner now more effectively handle and log I/O errors that might occur during a scan.
• Improved: The Traffic Inspector firewall now processes files uploaded via nested, grouped, and obfuscated form fields in a more effective way.
• Improved: WP Cerber got necessary code improvements, and now it is fully compatible with PHP 8.
• Improved: The default list of allowed REST API namespaces now includes "wp-site-health".
• Improved: Downloadable files generated by WP Cerber are generated with appropriate HTTP Content-Type headers now.
• Fixed: Misalignment of Cerbers table footer labels on the "Users" admin page.
• Fixed: If the diagnostic log contains invalid Unicode (UTF-8) codes, it is not displayed on the Diagnostic log tab.

• New: A shortcode to display WP Cerbers cookies. You can display a list of cookies set by WP Cerber on any page.
• New: Deferred rendering of the custom login page. This new feature can help you if you need to solve plugin compatibility issues.
• Improved: The style of the scanner email reports has been improved.
• Fixed: A bug with displaying the status icon of an IP address on the Activity and Live Traffic admin pages.
• Fixed: If the name of a commercial plugin contains a special HTML symbol like ampersand, it cannot be uploaded to verify the integrity of the plugin.
• Read more

• New: In the professional version of WP Cerber, you can now permit user registrations for IP addresses in the White IP Access List only.
• New: All URLs in the logs are displayed in a shortened form without the websites domain. There is no much value having see known things.
• New: A new label "IP Whitelisted" with green borders has been introduced. It is displayed in a log row on the Live Traffic if the IP address was in White IP Access List, but the appropriate setting Use White IP Access List was not enabled at the moment when the event was logged.
• New: If you now hover the mouse over a red square icon in the Activity or Live Traffic log, you see the reason why the IP address in the row is currently locked out.
• New: If you now hover the mouse over a green or black square Access List icon in the Activity or Live Traffic log, you see the comment youve previously specified for that Access List entry.
• Improved: All non-REGEX entries in the list of prohibited usernames (logins) are case-insensitive now. This applies to standard Latin-based (ASCII) WordPress usernames only.
• Improved: The name of a group in the Group column on Cerber.Hubs website list is a link that takes you to the list of websites in the group.
• Improved: The launch time of the daily maintenance tasks is now set to the night-time at 02:20. If you need them to get rescheduled, you can manually delete the cerber_daily cron task via a plugin or deactivate/activate WP Cerber.
• Fixed: Configured REST API restrictions have no effect if a WordPress is installed not in the root folder of a website (there is a path in the site URL). Affected versions: 8.6.1 and newer.
• Fixed: A bug in the logging subsystem: depending on server configuration, submitted form fields are not saved into the DB (if it is enabled in the logging settings).
• Fixed: A bug with Cerbers admin CSS styles that were added in the previous version and hid the top pagination links on the "All posts" and "All posts" admin pages.

• New: On the user sessions page, you can now search sessions by a user name, email, and the IP address from which a user has logged in.
• New: You can specify locations (URL Paths) to exclude requests from logging. They can be either exact matches or regular expressions (REGEX).
• New: You can exclude requests from logging based on the value of the User-Agent (UA) header.
• New: A new, minimal logging mode. When it is set, only HTTP requests related to known activities are logged.
• Improved: The layout of the Live Traffic log has been improved: now all events that are logged during a particular request are shown as an event list sorted in reverse order.
• Improved: The user sessions page has been optimized for performance and compatibility and now works blazingly fast.
• Improved: If your website is behind a proxy, IP addresses of user sessions now are detected more precisely.
• Improved: When you configure the request whitelist in the Traffic Inspector settings, you can now specify rules with or without trailing slash.
• Improved: A new version of Cloudflare add-on for WP Cerber is available: the performance of the add-on has been optimized.
• Read more

• New: File system analytics. It's generated based on the results of the last full integrity scan.
• New: Logging user deletions. The users display name and roles are temporarily stored until all log entries related to the user are deleted.
• New: Faster export with a new date format for CSV log export.
• New: Ability to disable adding the website administrator's IP address to the White IP Access List upon WP Cerber activation.
• Improved: Handling the creation of new users by WooCommerce and membership plugins.
• Improved: Handling user registrations with prohibited emails.
• Improved: Handling secure Cerbers cookies on websites with SSL encryption enabled.
• Improved: The performance of the integrity checker and malware scanner on huge websites with a large number of files.
• Fixed: Loading the default plugin settings has no effect. Now its fixed and moved from the admin sidebar to the Tools admin page.
• Read more

• New: Ability to load IP access list's entries in the CSV format (bulk load).
• Update: A new malware scanner setting allows you to permit the scanner to change permissions of folders and files when required.
• Fixed: The access list IPv4 wildcard ... doesnt work (has no effect).
• Fixed: If the anti-spam query whitelist contains more than one entry, they do not work as expected.
• Fixed: Several settings fields are not properly escaped.
• Read more

• New: An integration with the Cloudflare cloud-based firewall. Its implemented as a special WP Cerber add-on.
• Update: The malware scanner has got improvements to the monitoring of new and modified files feature.
• Update: Additional search fields for the Activity log. They enable you to find a specific request by its Request ID (RID) or/and to search for a string in the request URL.
• Update: The minimum supported PHP version is 5.6.
• Read more

• New: On the Live Traffic log, now you can find requests with software errors if they occurred.
• Update: The code of WP Cerber has been updated and tested to fully support and be compatible with PHP 7.4.
• Update: The layout of the list of slave websites on the Cerber.Hub's main page has been improved to display the list more accurately on narrow and mobile screens.
• Update: If a slave website has the professional version of WP Cerber, it has a PRO sign in the "WP Cerber" column. The license expiration date is shown when you hover the mouse over the sign.
• Fixed: A bug with displaying long file names in the Security Scanner Quarantine that makes unavailable deleting or restoring quarantined files manually.
• Fixed: A bug that requires installing a valid license key on a Cerber.Hub master website to permit configuring settings on slave websites remotely, which is not intended behavior.
• Read more

• New: A personal data export and erase feature which can be used through the WordPress personal data export and erase tool. This feature helps your organization to be in compliance with data privacy laws such as GDPR in Europe or CCPA in California
• Update: The performance of the algorithm that handles exporting rows from the Activity log and the Live Traffic log to a CSV file has been improved enabling export larger datasets
• Update: When you block a user you can add an optional admin note now
• Fixed: If a user is blocked, its not possible to update the user message
• Fixed: Depending on the logging settings the "Details" links on the Live Traffic log are not displayed in some rows
• Read more

• New: Ability to separately set the number of days of keeping log records in the database for authenticated (logged in) website users and non-authenticated (not logged in) visitors.
• New: You can completely turn off the Citadel mode feature in the Main Settings
• Update: When you upload a ZIP archive on the integrity scanner page it processes nested ZIP archives now and writes errors to the diagnostic log if it's enabled
• Update: The appearance of the Activity log has got small visual improvements
• Update: If the number of days to keep log records is not set or set to zero, the plugin uses the default setting instead. Previously you can set it to zero and keep log records infinitely.
• Fixed: The blacklisting buttons on the Activity tab do not work showing "Incorrect IP address or IP range".
• Fixed: PHP Notice: Trying to get property "ID" of non-object in cerber-load.php on line 1131

• IP Access Lists now support IPv6 networks, ranges, and wildcards. Add as many IPv6 entries to the access lists as you need. We've developed an extraordinarily fast ACL engine to process them.
• The algorithm of handling consecutive IP address lockouts has been improved: the reason for an existing lockout is updated and its duration is recalculated in real-time now.
• Traffic inspection algorithms were optimized to reduce false positives and make algorithms more human-friendly.
• Improved compatibility with WooCommerce: the password reset and login forms are not blocked anymore if a users IP gets locked out due to using a non-existing username by mistake, using a prohibited username, or if a user has exceeded the number of allowed login attempts.
• Improved compatibility with WordPress scheduled cron tasks if a website runs on a server with PHP-FPM (FastCGI Process Manager)
• Very long URLs on the Live Traffic page are now displayed in full when you click the "Details" link in a row.
• The Cerber.Hub multi-site manager: the server column on the slave websites list page now contains a link to quickly filter out websites on the same server.
• The Cerber.Hub multi-site manager: now it remembers the filtered list of slave websites while youre switching between them and the master.
• Fixed: If the Custom login URL is enabled on a subfolder WordPress installation, the user redirection after logout generates the HTTP 404 error page.
• Fixed: Very long HTTP referrers and request URLs are displayed in a truncated form on the Live Traffic page due to CSS bug.
• Fixed: If the Data Shield security feature is active, the password reset page on WordPress 5.3 doesnt work properly showing "Your password reset link appears to be invalid. Please request a new link below."
• Read more

• New: The malware scanner and integrity checker window has got a new filter that enables you to filter out and navigate to specific issues quickly.
• New: Cerber.Hub: new columns and filters have been added to the list of slave websites. The new columns display server IP addresses, hostnames, and countries where servers are located.
• Bug fixed: Depending on the number of items in the access lists, the IP address 0.0.0.0 can be erroneously marked as whitelisted or blacklisted.
• Bug fixed in Cerber.Hub: if a WordPress plugin is installed on several slave websites and the plugin needs to be updated on some of the slave websites, the plugin is shown as needs to be updated on all the slave websites.
• Read more

• New: Data Shield module for advanced protection of user data and vital settings in the website database. Available in the PRO version.
• Improvement: Compatibility with WooCommerce significantly improved.
• Update: Strict filtering for the Custom login URL setting.
• Update: Chinese (Taiwan) translation has been added. Thanks to Sid Lo.
• Bug fixed: Custom login URL doesn't work after updating WordPress to 5.2.3.
• Bug fixed: User Policies tabs are not switchable if a user role was declared with a hyphen instead of the underscore.
• Bug fixed: A PHP warning while adding a network to the Black IP Access List from the Activity tab.
• Bug fixed: An anti-spam false positive: some WordPress DB updates can't be completed.
• Read more

• New: More flexible role-based GEO access policies.
• New: A logged in users' sessions manager.
• Update: Access to users data via WordPress REST API is always granted for administrator accounts now
• Improvement: The custom login page feature has been updated to eliminate possible conflicts with themes and other plugins.
• Improvement: Improved compatibility with operating systems that natively doesnt support the PHP GLOB_BRACE constant.

• New: Two-Factor Authentication.
• New: Block registrations with unwanted (banned) email domains.
• New: Block access to the WordPress Dashboard on a per-role basis.
• New: Redirect after login/logout on a per-role basis.
• Update: The Users tab has been renamed to Global and now is under the new User Policies admin menu.
• Fixed: Switching to the English language in Cerbers admin interface has no effect.
• Fixed: Multiple notifications about a new version of the plugin in the WordPress dashboard.
• Read more

• New: Automatic recovery of infected files. When the malware scanner detects changes in the core WordPress files and plugins, it automatically recovers them.
• New: A set of quick navigation buttons on the Activity page. They allow you to filter out log records quickly.
• New: A unique Session ID (SID) is displayed on the Forbidden 403 Page now.
• New: The advanced search on the Live Traffic page has got a set of new fields.
• New: To make a website comply with GDPR, a cookie prefix can be set.
• Update: The lockout notification settings are moved to the Notifications tab.
• Update: The list of files to be scanned in Quick mode now also includes files with these extensions: phtm, phtml, phps, php2, php3, php4, php5, php6, php7.
• Read more

• New: In a single click you can get a list of active plugins and available updates on a slave website.
• New: Notification about a newer versions of Cerber and WordPres available ot install on a slave.
• New: On a master website, you can select what language to use when a slave admin page is being displayed.
• Improvement: Long URLs on the Live Traffic page now are shortened and displayed more neatly.
• Improvement: The plugin uninstallation process has been improved and now cleans up the database completely.
• Improvement: Multiple translations have been updated. Thanks to Maxime, Jos Knippen, Fredrik Nslund, Francesco.
• Fixed: The "Add to the Black List" button on the Activity log page doesn't work.
• Fixed: When the "All suspicious activity" button is clicked on the Dashboard admin page, the "Subscribe" link on the Activity page doesn't work correctly.
• Fixed: When you open an email report, the link to the list of deleted files during a malware scan doesn't work as expected.
• Read more

• New: Authorized users only mode.
• New: An ability to block a user account.
• New: Role-based access to WordPress REST API.
• Update: Added ability to search and filter a user on the Activity page.
• Update: A new, separate setting for preventing user enumeration via WordPress REST API.
• Update: A new Changelog section on the Tools page.
• Update: Improved handling scheduled maintenance tasks on a multi-site WordPress installation.
• Fixed: Several HTML markup errors on plugin admin pages.
• Read more

• New: New settings for the Traffic Inspector firewall allow you to fine-tune its behavior. You can enable less or more restrictive firewall rules.
• Update: Troubleshooting of possible issues with scheduled maintenance tasks has been improved.
• Update: To make troubleshooting easier the plugin logs not only a lockout event but also logs and displays the reason for the lockout.
• Update: Compatibility with ManageWP and Gravity Forms has been improved.
• Update: The layout of the Activity and Live Traffic pages has been improved.
• Bug fixed: The malware scanner wrongly prevents PHP files with few specific names in one particular location from being deleted after a manual scan or during the automatic malware removal.
• Bug fixed: The number of email notifications might be incorrectly limited to one email per hour.
• Read more

• New: The plugin monitors suspicious requests that cause 4xx and 5xx HTTP errors and blocks IP addresses that aggressively generate such requests.
• New: A set of WordPress navigation menu links. Login, logout, and register menu items can be automatically generated and shown in any WordPress menu or a widget.
• New: Software error logging. A handy feature that logs PHP errors and shows them on Live Traffic page.
• New: A new export feature for Traffic Inspector. It allows exporting all log entries or a filtered set from the log of HTTP requests.
• Update: Multiple improvements to Traffic Inspector firewall algorithms. In short, the detection of obfuscated malicious SQL queries and injections has been improved.
• Update: Improved handling of malformed requests to wp-cron.php.
• Fix: The number of email notifications per hour can exceed the configured limit.
• Read more

• New: A new set of heuristics algorithms for detecting obfuscated malware JavaScript code.
• New: A new file filter on the Quarantine page lets to filter out quarantined files by the date of the scan.
• New: The performance of the malware scanner has been improved. Now the scanner deletes all files in the website session and temporary folders permanently before the scan.
• Update: If the plugin is unable to detect the remote IP address, it uses 0.0.0.0 as an IP.
• Update: The antispam engine will never block the localhost IP
• Update: Performance improvements for database queries related to the process of user authentication.
• Update: Improved handling the plugin settings in a buggy or misconfigured hosting environment that could cause the plugin to reset settings to their default values.
• Update: Translations have been updated. Thanks to Francesco, Jos Knippen, Fredrik Nslund, Slobodan Ljubic and MARCELHAP.
• Fix: Fixed an issue with saving settings on the Hardening tab: "Unable to get access to the file"
• Read more

• New: An ignore list for the malware scanner.
• New: Disabling execution of PHP scripts in the WordPress media folder helps to prevent offenders from exploiting security flaws.
• New: Disabling PHP error displaying as a setting is useful for misconfigured servers.
• New: English for the plugin admin interface. Enable it if you prefer to have untranslated, original admin interface.
• New: Diagnostic logging for the malware scanner. Specify a particular location of the log file by using the CERBER_DIAG_DIR constant.
• Update: The performance of malware scanning on a slow web server with thousands of issues and tens of thousands of files has been improved.
• Update: PHP 5.3 is not supported anymore. The plugin can be activated and run only on PHP 5.4 or higher.
• Fix: If a malicious file is detected on a slow shared hosting, the file can be shown twice in the results of the scan.
• Fix: A possible issue with the short PHP syntax on old PHP versions in /wp-content/plugins/wp-cerber/common.php on line 1970
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New: Automatic cleanup of malware and suspicious files. This powerful feature is available in the PRO version and automatically deletes trojans, viruses, backdoors, and other malware. Cerber Security Professional scans the website on an hourly basis and removes malware immediately. Update: Algorithms of the malware scanner have been improved to detect obfuscated malware code more precisely for all types of files. Update: Email reports for scheduled malware scans have been extended with useful performance numbers and a list of automatically deleted malicious files if youve enabled automatic malware removal and some files have been deleted. Fix: A possible issue with uploading large JSON and CSV files. When Traffic Inspector scans uploaded files for malware payload, some JSON and CSV files might be erroneously identified as containing a malicious payload. Fix: A possible Divi theme forms incompatibility. If you use the Divi theme (by Elegant Themes), you can come across a problem with submitting some forms. * Read more

• New: The quarantine has got a separate admin page in the WordPress dashboard which allows viewing deleted files, restoring or deleting them.
• New: Now the malware scanner and integrity checker supports multisite WordPress installations.
• Bug fixed: Once an address IP has been locked out after reaching the limit to the number of attempts to log in the "Were sorry, you are not allowed to proceed" forbidden page is being displayed instead of the normal user message "You have exceeded the number of allowed login attempts".
• Bug fixed: PHP Notice: Only variables should be passed by reference in cerber-load.php on line 5377
• Update: Miscellaneous code improvements for traffic inspector
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New: The firewall algorithms have been improved and now inspect the contents of all files that are being tried to upload on a website. New: The traffic logger can save headers, cookies and the $_SERVER variable for every HTTP request. New: The scanner now scans installed plugins for known vulnerabilities. If you have enabled scheduled automatic scans you will be notified in a email report. Update: A set of new malware signatures amd patterns have been added to detect malware submitted through a contact form as well as any HTTP request fields. Update: Now the plugin inspects user sign ups (user registrations) on multisite WordPress installations and BuddyPress. Update: The search for user activity, as well as enabling activity notifications, is improved. *Read more

• New: Monitoring new and changed files.
• New: Detecting malicious redirections and directives in .htaccess files.
• New: Automated hourly and daily scheduled scans with flexible email reports.
• Update: Added a protection from logging wrong time stamps on some not correctly configured servers.
• Bug fixed: Unexpected warning messages in the WordPress dashboard.
• Bug fixed: Some file status links on the scanner results page may not work.

• A new button View Activity has been added to the user edit page in the WordPress dashboard.
• Miscellaneous code optimizations: performance of database routines and SQL queries are improved.
• A new Swedish translation has been added. Thanks to Fredrik Nslund.
• Bug fixed: The wildcard ... entry (all IPv4 addresses) to the Black IP Access List, doesn't work as intended.

• New: Regular expressions are now available for the Traffic Inspector Request whitelist and Antispam Query whitelist.
• Update: Antispam engine algorithms have been updated to improve AJAX requests handling and reduce false positives.
• Update: Improved compatibility with WooCommerce, Formidable Forms, Gravity Forms and AJAX file upload.
• Update: Any symbols other than letters, numbers, dashes and underscores are not permitted in Custom login URL anymore.
• Bug fixed: The Safe antispam mode doesnt work correctly on some website configurations. That may lead to false positives and erroneous spam form submission detection.
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• New: A new, advanced initialization mode which reinforces overall security performance.
• New: Traffic Inspector's algorithms detect and deny any attempt to upload executable files or an .htaccess file via any POST request.
• New: A new setting to disable email notifications about new versions of the plugin.
• New: Search in the traffic log improved. Search in the User agent string and filter out the HTTP method (GET/POST) are available.
• Update: Performance of the logging subsystem is improved.
• Update: In the Smart mode if a user is not logged in, all requests to the admin dashboard are logged.
• Bug fixed: If a user tries to log in with an email address and an incorrect password, the "Invalid username" message is shown.
• Bug fixed: On a multisite installation with websites in subdirectories a user activation link doesn't work.
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• New: Protection against (DoS) attacks that exploit recently discovered vulnerability (CVE-2018-6389).
• New: The Traffic Inspector algorithm detects malformed and double extensions like .php.jpg more precisely.
• New: The Access Lists now accept IPv6 addresses in any form and handle them in a shortened form. All existing IPs will be converted.
• Bug fixed: If the WP REST API is blocked, a request with a specially malformed URL can bypass protection. Thanks to Tomasz Wasiak.
• Bug fixed: An IPv4 range in the Access Lists might not work as expected, depending on server/site settings.

• New: Traffic Inspector has got a Request White List setting.
• New: An Activity filter for the Advanced search form on the Traffic Inspector page.
• Bug fixed: Two reCAPTCHA widgets on login/registration forms.
• Bug fixed: A legitimate IP address can be locked out by Traffic Inspector on a Windows hosting (server).

• New: Traffic Inspector. Its a specialized request inspection algorithm that performs inspection all suspicious incoming HTTP requests and block them before they can harm a website.
• New: Traffic Inspector optionally logs all or just suspicious and malicious requests so you can inspect them.
• New: Added ability to clean up Cerbers DB tables.
• New: If the web server has some issues and those issues can affect plugin functionality, they are shown on the Diagnostic page.
• Added protection to prevent scheduled tasks from being executed multiple times an hour.
• JavaScript antispam code is improved to eliminate excessive fields in GET requests.
• To eliminate possible warning messages, the inet_pton() function has been replaced with filter_var().

• New: You can add comments for new entries in the access lists
• Improved compatibility with exotic hosting environments: now the plugin handles URLs with the MultiViews server option enabled.
• Improved compatibility with caching plugins
• Bug fixed: The plugin logs a logout event if the actual logout doesn't happen
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• New: Regular expressions (REGEX) in the list of prohibited usernames.
• New: Enable/disable weekly reports, a new setting to specify email addresses for weekly reports.
• Improved compatibility with non-standard authentication processes, WooCommerce and exotic/outdated hosting environments.
• Bug fixed: Some interface elements of WordPress Customizer might not work.
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• New: Now the plugin will send a brief performance report (activity for past seven days) to specified email addresses.
• Plugin admin interface pages: compatibility with screen readers has been improved.
• REST API: the deprecated rest_enabled filter is used for WordPress older than 4.7.
• Bug fixed: After updating the plugin to the 5.7 version some disabled checkboxes (and corresponding disabled settings) are set to their default, enabled states.
• Bug fixed: An IP address in the white access list may be locked out as a suspicious IP.
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• New: Limit access to WordPress REST API for logged in users only.
• New: For new users the plugin records the date of registration, the IP address and a user who has added a new user.
• New: Sorting users on the Users admin page by date of registration.
• New: User registration monitoring and activity logging functions has been improved.
• Translations has been updated, thanks to Jon Knippen, Wojciech Grski and Francesco.
• Bug fixed: Stop user enumeration via REST API doesnt work on a multisite WordPress installation.
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• White list for the WordPress anti-spam engine.
• White list for REST API requests.
• Disable access to user data via REST API and stop REST API user enumeration.
• Read more

• Bug fixed: Hidden custom login URL may be discovered by using specially formatted URL.
• Bug fixed: Customization CSS styles dont work on the Custom login page.

• New: Anti-spam and anti-bot for contact and other forms. Cerber antispam and bot detection engine now protects all forms on a website. Its compatible with virtually any form. Tested with Caldera Forms, Gravity Forms, Contact Form 7, Ninja Forms, Formidable Forms, Fast Secure Contact Form, Contact Form by WPForms.
• New: Portuguese of Portugal translation has been added, thanks to Helderk.
• Bug fixed: A user with admin account is unable to approve comments with pending status in the WordPress Dashboard.

• New: A new antispam and bot detection engine that protects comment and user registration forms from bot attacks. After several attempts bot IP will be locked out.
• New: You can tell Cerber either to mark detected spam comments as spam or deny them completely.
• New: Cerber can automatically move spam comments older than the specified amount of days to trash.
• New: Added the cerber_404_template filter for specifying an alternative to the default 404 page not found template.
• New: Added code to avoid possible conflict between Custom login URL and REST API.
• New: Italian translation has been added, thanks to Francesco Venuti.
• Bug fixed: WordPress database error: Table '...cerber_lab_net' doesn't exist.