VULNERABILITY INTELLIGENCE
CVE-2026-66399
CVSS score6.5 MEDIUM
EPSS probability0.29%
CISA KEVNot currently listed
Published2026-07-27
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Description
phpMyFAQ before 4.1.6 contains a privilege escalation vulnerability in GroupController::updateMembers() that allows administrators with only group-management permissions to join privileged groups without verification of required rights. Attackers can add themselves to pre-existing groups holding user-management rights and immediately inherit those permissions to modify or delete user accounts.
Weakness classification
- disclosure@vulncheck.com: CWE-269