CVE-2026-66399

MediumCVSS 6.5/10Last modified Oct 24, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-269

Affected software

VendorProductVersions
thorstenphpMyFAQ< 4.1.6

References

Timeline

Published
Jul 27, 2026
Last modified
Oct 24, 2026
NVD status
Deferred

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