CVE-2026-85593
CVE-2026-85593
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.
Vulnerability class: XSS (Cross-Site Scripting)
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-85593?
- CVE-2026-85593 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-09-04.
- How severe is CVE-2026-85593?
- Medium severity. CVSS v3 base score is 5.4 out of 10.