The LiteSpeed Cache plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'esi' parameter in all versions up to, and including, 7.9 due to insufficient input sanitization and output escaping. This vulnerability allows attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The vulnera [truncated]
CVE-2026-3375 is a stored cross-site scripting (XSS) vulnerability in the LiteSpeed Cache plugin for WordPress, affecting versions up to and including 7.7. The vulnerability exists in two REST API endpoints—/wp-json/litespeed/v1/notify_ccss and /wp-json/litespeed/v1/notify_ucss—which accept CSS content from QUIC.cloud callback notifications and store it to disk without sanitization. The stored content is [truncated]
