CVE-2026-78438 W3 Total Cache <= 2.10.5 - Unauthenticated Stored Cross-Site Scripting via LazyLoad Background Mutator

The W3 Total Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via LazyLoad Background Mutator in all versions up to, and including, 2.10.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to...

CVE-2026-78438

The W3 Total Cache plugin for WordPress (versions ≤ 2.10.5 ) is affected by an unauthenticated Stored Cross-Site Scripting vulnerability in the LazyLoad Background Mutator component. Due to insufficient input sanitization and output escaping , attackers can inject arbitrary scripts via comment co...