CVE-2026-57995

EUVD-2026-40454
phpMyFAQ before 4.1.5 contains a privilege escalation vulnerability in GroupController::updatePermissions that allows GROUP_EDIT administrators to grant arbitrary rights to groups without verifying they hold those rights themselves. A delegated administrator can exploit this by assigning high-value permissions to a group they belong to, inheriting those rights and escalating privileges up to full administrative control.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 25.25%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
phpmyfaqphpmyfaq
𝑥
< 4.1.5
CNA
Common Weakness Enumeration
References
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-pg62-f8g4-4wqh
https://www.vulncheck.com/advisories/phpmyfaq-privilege-escalation-via-missing-self-rights-constraint-in-groupcontroller-updatepermissions
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-pg62-f8g4-4wqh