CVE-2026-85593

Description

phpMyFAQ versions before 4.1.8 contain a stored cross-site scripting vulnerability in FaqHelper::convertOldInternalLinks() that calls html_entity_decode() on sanitized FAQ content, reversing entity-encoding protection. Authenticated users with FAQ editing privileges can inject JavaScript payloads that execute in the browsers of all users viewing the affected FAQ pages.

CVSS Vector

References

• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-x6qj-5jhf-xgpm
• https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-stored-xss-via-html-entity-decode