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WP Fastest Cache vulnerabilities
WP Fastest Cache has 33 known vulnerabilities in this database. The most recent published record is dated 1 Sep 2026.
- Known vulnerabilities
- 33
- Active installs
- 1m+
- Latest version
- 1.5.2
- Last updated
- 13 Sep 2026
- Most recent
- 1 Sep 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Security weakness CVE-2026-74916 | Medium 6.5 | Before 1.5.1 | Fixed in 1.5.1 | 1 Sep 2026 |
| Cross-site scripting (XSS) CVE-2026-19760 | High 7.2 | Up to 1.5.0 | Fixed in a later version (latest 1.5.2) | 26 Aug 2026 |
| Cross-site scripting (XSS) CVE-2026-74932 | High 7.5 | Before 1.5.1 | Fixed in 1.5.1 | 25 Aug 2026 |
| Broken access control CVE-2025-10476 | Medium 4.3 | Up to 1.4.0 | Fixed in a later version (latest 1.5.2) | 27 Nov 2025 |
| Arbitrary file deletion CVE-2020-36836 | High 8.0 | Before 0.9.0.3 | Fixed in 0.9.0.3 | 16 Oct 2024 |
| Path traversal CVE-2024-4347 | High 7.2 | Up to 1.2.6 | Fixed in a later version (latest 1.5.2) | 23 May 2024 |
| SQL injection CVE-2021-24869 | High 8.8 | Before 0.9.5 | Fixed in 0.9.5 | 16 Jan 2024 |
| Cross-site scripting (XSS) CVE-2021-24870 | Medium 6.1 | Before 0.9.5 | Fixed in 0.9.5 | 16 Jan 2024 |
| SQL injection CVE-2023-6063 | High 7.5 | Before 1.2.2 | Fixed in 1.2.2 | 4 Dec 2023 |
| Broken access control CVE-2023-1375 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 9 Jun 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1938 | High 8.8 | Before 1.1.5 | Fixed in 1.1.5 | 30 May 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1927 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Broken access control CVE-2023-1928 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Broken access control CVE-2023-1929 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Broken access control CVE-2023-1930 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Broken access control CVE-2023-1931 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1918 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1919 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1920 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1921 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1922 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1923 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1924 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1925 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| Cross-site request forgery (CSRF) CVE-2023-1926 | Medium 4.3 | Up to 1.1.2 | Fixed in a later version (latest 1.5.2) | 6 Apr 2023 |
| SQL injection CVE-2015-9316 | Critical 9.8 | Before 0.8.4.9 | Fixed in 0.8.4.9 | 14 Aug 2019 |
| Path traversal CVE-2019-13635 | Critical 9.1 | Up to 0.8.9.5 | Fixed in a later version (latest 1.5.2) | 30 Jul 2019 |
| Path traversal CVE-2019-6726 | Medium 6.5 | Up to 0.8.9.0 | Fixed in a later version (latest 1.5.2) | 29 Jul 2019 |
| Cross-site scripting (XSS) CVE-2018-17583 | Medium 6.1 | Not yet published | Check for an update | 15 Apr 2019 |
| Cross-site request forgery (CSRF) CVE-2018-17584 | High 8.8 | Not yet published | Check for an update | 15 Apr 2019 |
| Cross-site scripting (XSS) CVE-2018-17585 | Medium 6.1 | Not yet published | Check for an update | 15 Apr 2019 |
| Cross-site scripting (XSS) CVE-2018-17586 | Medium 6.1 | Not yet published | Check for an update | 15 Apr 2019 |
| Cross-site request forgery (CSRF) CVE-2015-4089 | High 8.8 | Up to 0.8.3.4 | Fixed in a later version (latest 1.5.2) | 19 Sep 2017 |
Read the published descriptions
- CVE-2026-74916, 1 Sep 2026
- 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. CVE record
- CVE-2026-19760, 26 Aug 2026
- 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. CVE record
- CVE-2026-74932, 25 Aug 2026
- 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. CVE record
- CVE-2025-10476, 27 Nov 2025
- 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. CVE record
- CVE-2020-36836, 16 Oct 2024
- 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. CVE record
- CVE-2024-4347, 23 May 2024
- 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. CVE record
- CVE-2021-24869, 16 Jan 2024
- 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 CVE record
- CVE-2021-24870, 16 Jan 2024
- 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 CVE record
- CVE-2023-6063, 4 Dec 2023
- 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. CVE record
- CVE-2023-1375, 9 Jun 2023
- 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. CVE record
- CVE-2023-1938, 30 May 2023
- 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 CVE record
- CVE-2023-1927, 6 Apr 2023
- 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. CVE record
- CVE-2023-1928, 6 Apr 2023
- 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. CVE record
- CVE-2023-1929, 6 Apr 2023
- 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. CVE record
- CVE-2023-1930, 6 Apr 2023
- 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. CVE record
- CVE-2023-1931, 6 Apr 2023
- 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. CVE record
- CVE-2023-1918, 6 Apr 2023
- 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. CVE record
- CVE-2023-1919, 6 Apr 2023
- 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. CVE record
- CVE-2023-1920, 6 Apr 2023
- 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. CVE record
- CVE-2023-1921, 6 Apr 2023
- 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. CVE record
- CVE-2023-1922, 6 Apr 2023
- 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. CVE record
- CVE-2023-1923, 6 Apr 2023
- 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. CVE record
- CVE-2023-1924, 6 Apr 2023
- 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. CVE record
- CVE-2023-1925, 6 Apr 2023
- 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. CVE record
- CVE-2023-1926, 6 Apr 2023
- 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. CVE record
- CVE-2015-9316, 14 Aug 2019
- 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. CVE record
- CVE-2019-13635, 30 Jul 2019
- The WP Fastest Cache plugin through 0.8.9.5 for WordPress allows wpFastestCache.php and inc/cache.php Directory Traversal. CVE record
- CVE-2019-6726, 29 Jul 2019
- 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. CVE record
- CVE-2018-17583, 15 Apr 2019
- The WP Fastest Cache plugin 0.8.8.5 for WordPress has XSS via the rules[0][content] parameter in a wpfc_save_exclude_pages action. CVE record
- CVE-2018-17584, 15 Apr 2019
- The WP Fastest Cache plugin 0.8.8.5 for WordPress has CSRF via the wp-admin/admin.php wpfastestcacheoptions page. CVE record
- CVE-2018-17585, 15 Apr 2019
- The WP Fastest Cache plugin 0.8.8.5 for WordPress has XSS via the wpfastestcacheoptions wpFastestCachePreload_number or wpFastestCacheLanguage parameter. CVE record
- CVE-2018-17586, 15 Apr 2019
- The WP Fastest Cache plugin 0.8.8.5 for WordPress has XSS via the rules[0][content] parameter in a wpfc_save_timeout_pages action. CVE record
- CVE-2015-4089, 19 Sep 2017
- 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. CVE record
What to do if you run WP Fastest Cache
If you run WP Fastest Cache, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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