WordPress plugin
WP Fastest Cache – WordPress Cache Plugin security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 39 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical3
- High11
- Medium25
- Low0
All WP Fastest Cache – WordPress Cache Plugin vulnerabilities
- Medium5.9Unauthenticated Sensitive Information Exposure via Cached wp-activate.php Response
≤1.5.3Update to 1.5.4
- Medium6.11.5.0 - Unauthenticated Cache Poisoning
0.8.7.7 – 1.5.0Update to 1.5.1
- High7.2Unauthenticated Stored Cross-Site Scripting via HTTP Host Header
≤1.5.0Update to 1.5.1
- High7.2Unauthenticated Stored Cross-Site Scripting
≤1.5.0Update to 1.5.1
- Medium4.3Missing Authorization to Authenticated (Subscriber+) DB Cleanup Actions
≤1.4.0Update to 1.4.1
- High7.2Authenticated (Administrator+) Arbitrary File Deletion
≤1.2.6Update to 1.2.7
- Critical9.8Unauthenticated SQL Injection
≤1.2.1Update to 1.2.2
- Medium6.5Authenticated(Administrator+) Blind Server Side Request Forgery via check_url
≤1.1.4Update to 1.1.5
- Medium4.3Cross-Site Request Forgery via 'wpfc_preload_single_save_settings_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'wpfc_clear_cache_of_allsites_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'wpfc_start_cdn_integration_ajax_request_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'wpfc_preload_single_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Missing Authorization in 'wpfc_purgecache_varnish_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'wpfc_remove_cdn_integration_ajax_request_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'deleteCssAndJsCacheToolbar'
≤1.1.2Update to 1.1.3
- Medium4.3Missing Authorization in 'wpfc_preload_single_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'wpfc_pause_cdn_integration_ajax_request_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'wpfc_toolbar_save_settings_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Missing Authorization to Cache Deletion
≤1.1.2Update to 1.1.3
- Medium4.3Missing Authorization in 'deleteCssAndJsCacheToolbar'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'deleteCacheToolbar'
≤1.1.2Update to 1.1.3
- Medium4.3Missing Authorization in 'wpfc_clear_cache_of_allsites_callback'
≤1.1.2Update to 1.1.3
- Medium4.3Cross-Site Request Forgery via 'wpfc_purgecache_varnish_callback'
≤1.1.2Update to 1.1.3
- Medium6.5Directory Traversal to Arbitrary File Deletion
≤0.8.9.0Update to 0.8.9.1
- High8.8Cross-Site Request Forgery to Stored Cross-Site Scripting
<0.9.5Update to 0.9.5
- High8.8Authenticated (Subscriber+) SQL Injection
<0.9.5Update to 0.9.5
- Medium6.5Authenticated (Admin+) Directory Traversal to Arbitrary File Deletion
<0.9.1.7Update to 0.9.1.7
- High8.0Authenticated (Subscriber+) Arbitrary File Deletion
<0.9.0.3Update to 0.9.0.3
- Critical9.1Directory Traversal
≤0.8.9.5Update to 0.8.9.6
- Medium6.1Cross-Site Scripting via rules[0][content] parameter
≤0.8.8.5Update to 0.8.8.6
- Medium6.1Cross-Site Scripting via wpFastestCachePage options, wpFastestCachePreload_number or wpFastestCacheLanguage parameter
≤0.8.8.5Update to 0.8.8.6
- Medium6.1Cross-Site Scripting via the rules[0][content] parameter in a wpfc_save_exclude_pages action
≤0.8.8.5Update to 0.8.8.6
- High8.8Cross-Site Request Forgery via page to wpfastestcacheoptions
≤0.8.8.5Update to 0.8.8.6
- High7.4SQL Injection
≤0.8.7.4Update to 0.8.7.5
- High8.8Local File Inclusion
≤0.8.5.9Update to 0.8.6.0
- High8.8Local File Inclusion
≤0.8.5.7Update to 0.8.5.8
- Medium4.9Missing Authorization
≤0.8.5.7Update to 0.8.5.8
- Critical9.8SQL Injection
<0.8.4.9Update to 0.8.4.9
- High8.8Multiple Cross-Site Request Forgery
<0.8.3.5Update to 0.8.3.5
WP Fastest Cache – WordPress Cache Plugin: common questions
Does WP Fastest Cache – WordPress Cache Plugin have known vulnerabilities?
Yes. VulnCrest Radar lists 39 known vulnerabilities in WP Fastest Cache – WordPress Cache Plugin: 3 critical, 11 high, 25 medium. None are known to affect version null.
How do I check which version of WP Fastest Cache – WordPress Cache Plugin I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent WP Fastest Cache – WordPress Cache Plugin vulnerability?
CVE-2026-111464, published Nov 2, 2026: WP Fastest Cache <= 1.5.3 - Unauthenticated Sensitive Information Exposure via Cached wp-activate.php Response. Severity: Medium (CVSS 5.9).
Is any WP Fastest Cache – WordPress Cache Plugin vulnerability listed in CISA KEV?
No. None of the known WP Fastest Cache – WordPress Cache Plugin vulnerabilities is currently listed in the CISA KEV catalog.