Free tool
Is my WordPress plugin safe?
Type a plugin or theme and the version you run, and we’ll show every known vulnerability that affects it, from the 390,007 records in our vulnerability database. The version is listed under Plugins in your WordPress dashboard.
Plugin · wp-fastest-cache
WP Fastest Cache
30 known vulnerabilities on record. Add your version above to see which ones affect you.
Sep 1, 2026WP Fastest Cache: Does not include a set of tracking-related query parameters in its page-cache key while still caching pages requested with themCVE-2026-74916 · fixed in 1.5.1 · reported by WPScanMedium 6.5
The WP Fastest Cache WordPress plugin before 1.5.1 does not include a set of tracking-related query parameters in its page-cache key while still caching pages requested with them, allowing unauthenticated attackers to have a page rendered under their own request context stored under, and served from, the clean URL's cache entry to every subsequent visitor.
Aug 26, 2026WP Fastest Cache – WordPress Cache: Stored Cross-Site ScriptingCVE-2026-19760 · affects up to 1.5.0 · reported by WordfenceHigh 7.2
The WP Fastest Cache – WordPress Cache Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via HTTP Host Header in all versions up to, and including, 1.5.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the Polylang or Polylang Pro plugin to be active and the Combine JS option to be enabled, as these conditions trigger the vulnerable Host-header-to-URL code path that writes attacker-controlled script src values into the shared page-cache file served to all subsequent visitors.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Aug 25, 2026WP Fastest Cache: Does not validate the Host header before using it to build the URLs of the asset files it embeds in the pages it cachesCVE-2026-74932 · fixed in 1.5.1 · reported by WPScanHigh 7.5
The WP Fastest Cache WordPress plugin before 1.5.1 does not validate the Host header before using it to build the URLs of the asset files it embeds in the pages it caches, and does not include that header in the cache key, allowing unauthenticated attackers to poison cached pages with references to a server they control and have arbitrary JavaScript run for every subsequent visitor.
Nov 27, 2025WP Fastest Cache: Unauthorized modification of dataCVE-2025-10476 · affects up to 1.4.0 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the wpfc_db_fix_callback() function in all versions up to, and including, 1.4.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to initiate several database fix actions. This only affects sites with premium activated.
Oct 16, 2024WP Fastest Cache: Unauthorized arbitrary file deletionCVE-2020-36836 · affects up to 0.9.0.2 · reported by WordfenceHigh 8
The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized arbitrary file deletion in versions up to, and including, 0.9.0.2 due to a lack of capability checking and insufficient path validation. This makes it possible for authenticated users with minimal permissions to delete arbitrary files from the server.
May 23, 2024WP Fastest Cache: Directory TraversalCVE-2024-4347 · affects up to 1.2.6 · reported by WordfenceHigh 7.2
The WP Fastest Cache plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.2.6 via the specificDeleteCache function. This makes it possible for authenticated attackers to delete arbitrary files on the server, which can include wp-config.php files of the affected site or other sites in a shared hosting environment.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Jan 16, 2024WP Fastest Cache: Is lacking a CSRF check in its wpfc_save_cdn_integration AJAX actionCVE-2021-24870 · fixed in 0.9.5 · reported by WPScanMedium 6.1
The WP Fastest Cache WordPress plugin before 0.9.5 is lacking a CSRF check in its wpfc_save_cdn_integration AJAX action, and does not sanitise and escape some the options available via the action, which could allow attackers to make logged in high privilege users call it and set a Cross-Site Scripting payload
Jan 16, 2024WP Fastest Cache: Does not escape user input in the set_urls_with_terms method before using it in a SQL statementCVE-2021-24869 · fixed in 0.9.5 · reported by WPScanHigh 8.8
The WP Fastest Cache WordPress plugin before 0.9.5 does not escape user input in the set_urls_with_terms method before using it in a SQL statement, leading to an SQL injection exploitable by low privilege users such as subscriber
Dec 4, 2023WP Fastest Cache: Does not properly sanitise and escape a parameter before using it in a SQL statementCVE-2023-6063 · fixed in 1.2.2 · reported by WPScanHigh 7.5
The WP Fastest Cache WordPress plugin before 1.2.2 does not properly sanitise and escape a parameter before using it in a SQL statement, leading to a SQL injection exploitable by unauthenticated users.
Jun 9, 2023WP Fastest Cache: Unauthorized cache deletionCVE-2023-1375 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized cache deletion in versions up to, and including, 1.1.2 due to a missing capability check in the deleteCacheToolbar function . This makes it possible for authenticated attackers, with subscriber-level permissions and above, to delete the site's cache.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
May 30, 2023WP Fastest Cache: Does not have CSRF check in an AJAX actionCVE-2023-1938 · fixed in 1.1.5 · reported by WPScanHigh 8.8
The WP Fastest Cache WordPress plugin before 1.1.5 does not have CSRF check in an AJAX action, and does not validate user input before using it in the wp_remote_get() function, leading to a Blind SSRF issue
Apr 6, 2023WP Fastest Cache: Unauthorized data lossCVE-2023-1931 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized data loss due to a missing capability check on the deleteCssAndJsCacheToolbar function in versions up to, and including, 1.1.2. This makes it possible for authenticated attackers with subscriber-level access to perform cache deletion.
Apr 6, 2023WP Fastest Cache: Unauthorized data deletionCVE-2023-1930 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized data deletion due to a missing capability check on the wpfc_clear_cache_of_allsites_callback function in versions up to, and including, 1.1.2. This makes it possible for authenticated attackers with subscriber-level access to delete caches.
Apr 6, 2023WP Fastest Cache: Unauthorized data modificationCVE-2023-1929 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the wpfc_purgecache_varnish_callback function in versions up to, and including, 1.1.2. This makes it possible for authenticated attackers with subscriber-level access to purge the varnish cache.
Apr 6, 2023WP Fastest Cache: Unauthorized data modificationCVE-2023-1928 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the wpfc_preload_single_callback function in versions up to, and including, 1.1.2. This makes it possible for authenticated attackers with subscriber-level access to initiate cache creation.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1927 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the deleteCssAndJsCacheToolbar function. This makes it possible for unauthenticated attackers to perform cache deletion via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1926 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the deleteCacheToolbar function. This makes it possible for unauthenticated attackers to perform cache deletion via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1925 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_clear_cache_of_allsites_callback function. This makes it possible for unauthenticated attackers to clear caches via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1924 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_toolbar_save_settings_callback function. This makes it possible for unauthenticated attackers to change cache settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1923 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_remove_cdn_integration_ajax_request_callback function. This makes it possible for unauthenticated attackers to change cdn settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1922 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_pause_cdn_integration_ajax_request_callback function. This makes it possible for unauthenticated attackers to change cdn settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1921 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_start_cdn_integration_ajax_request_callback function. This makes it possible for unauthenticated attackers to change cdn settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1920 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_purgecache_varnish_callback function. This makes it possible for unauthenticated attackers to purge the varnish cache via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1919 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_preload_single_save_settings_callback function. This makes it possible for unauthenticated attackers to change cache-related settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 6, 2023WP Fastest Cache: Cross-Site Request ForgeryCVE-2023-1918 · affects up to 1.1.2 · reported by WordfenceMedium 4.3
The WP Fastest Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the wpfc_preload_single_callback function. This makes it possible for unauthenticated attackers to invoke a cache building action via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Apr 27, 2021WP Fastest Cache versions prior to 0.9.1.7: Directory traversalCVE-2021-20714 · fixed in 0.9.1.7 · reported by vultures@jpcert.or.jpMedium 6.5
Directory traversal vulnerability in WP Fastest Cache versions prior to 0.9.1.7 allows a remote attacker with administrator privileges to delete arbitrary files on the server via unspecified vectors.
Aug 14, 2019The wp-fastest-cache plugin before 0.8.4.9 for WordPress has SQL injection in wp-admin/admin-ajax.php?action=wpfc_wppolls_ajax_request via the poll_id parameterCVE-2015-9316 · fixed in 0.8.4.9 · reported by MITRECritical 9.8
The wp-fastest-cache plugin before 0.8.4.9 for WordPress has SQL injection in wp-admin/admin-ajax.php?action=wpfc_wppolls_ajax_request via the poll_id parameter.
Jul 30, 2019The WP Fastest Cache plugin through 0.8.9.5 for WordPress allows wpFastestCache.php and inc/cache.php Directory Traversal.CVE-2019-13635 · affects up to 0.8.9.5 · reported by MITRECritical 9.1
The WP Fastest Cache plugin through 0.8.9.5 for WordPress allows wpFastestCache.php and inc/cache.php Directory Traversal.
Jul 29, 2019The WP Fastest Cache plugin through 0.8.9.0 for WordPress allows remote attackers to delete arbitrary files because wp_postratings_clear_fastest_cache and rm_foCVE-2019-6726 · affects up to 0.8.9.0 · reported by MITREMedium 6.5
The WP Fastest Cache plugin through 0.8.9.0 for WordPress allows remote attackers to delete arbitrary files because wp_postratings_clear_fastest_cache and rm_folder_recursively in wpFastestCache.php mishandle ../ in an HTTP Referer header.
Sep 19, 2017Multiple cross-site request forgery (CSRF) vulnerabilities in the optionsPageRequest function in admin.php in WP Fastest Cache plugin before 0.8.3.5 for WordPreCVE-2015-4089 · fixed in 0.8.3.5 · reported by MITREHigh 8.8
Multiple cross-site request forgery (CSRF) vulnerabilities in the optionsPageRequest function in admin.php in WP Fastest Cache plugin before 0.8.3.5 for WordPress allow remote attackers to hijack the authentication of unspecified victims for requests that call the (1) saveOption, (2) deleteCache, (3) deleteCssAndJsCache, or (4) addCacheTimeout method via the wpFastestCachePage parameter in the WpFastestCacheOptions/ page.
Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.