CVE-2026-111254 | BDVDB-2026-398663 Detail
boldgridW3 Total Cache
Description#
The W3 Total Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 2.10.7 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. Exploitation requires that a Pro license was previously active with REST caching enabled and has since become inactive while Disk Enhanced page caching remains configured, and that the attacker holds a previously approved commenter identity.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.
Weaknesses#
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References#
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0169909e-c6cd-4d08-8301-5e09fce4429c?source=cve
- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/Licensing_Plugin_Admin.php#L928
- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/PgCache_ContentGrabber.php#L1450
- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/PgCache_ContentGrabber.php#L1719
- https://github.com/BoldGrid/w3-total-cache/commit/7168b0d7cc80e827ad234a0428ab3ecdbef3c107
- https://plugins.trac.wordpress.org/changeset/3757452/w3-total-cache/trunk/PgCache_ContentGrabber.php
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.