CVE-2026-19760
HIGH
7,2
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Description
AI Translation Available
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.
79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
StableCommon Consequences
Security Scopes Affected:
Access Control
Confidentiality
Integrity
Availability
Potential Impacts:
Bypass Protection Mechanism
Read Application Data
Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies:
AI/ML, Web Based, Web Server
https://plugins.trac.wordpress.org/browser/wp-fastest-cache/tags/1.4.9/inc/js-u…
https://plugins.trac.wordpress.org/browser/wp-fastest-cache/tags/1.4.9/inc/js-u…
https://plugins.trac.wordpress.org/browser/wp-fastest-cache/tags/1.4.9/wpFastes…
https://plugins.trac.wordpress.org/browser/wp-fastest-cache/tags/1.5.0/inc/js-u…
https://plugins.trac.wordpress.org/browser/wp-fastest-cache/tags/1.5.0/inc/js-u…
https://plugins.trac.wordpress.org/browser/wp-fastest-cache/tags/1.5.0/wpFastes…
https://www.wordfence.com/threat-intel/vulnerabilities/id/69a22238-88e8-4ff5-8e…