CVE-2026-57996: Phpmyfaq

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

phpMyFAQ before 4.1.5 contains a privilege escalation vulnerability in the user/add API endpoint that allows non-SuperAdmin administrators to create SuperAdmin accounts. A delegated administrator with USER_ADD/EDIT/DELETE permissions can call POST /admin/api/user/add with isSuperAdmin: true and attacker-chosen credentials to create a SuperAdmin account, then authenticate as that account to achieve full instance takeover.

Affected products

• Phpmyfaq Phpmyfaq: before 4.1.5 (fixed in 4.1.5)

Published 2026-07-15. Last modified 2026-07-16.