CVE-2026-56396

EUVD-2026-38162
phpMyFAQ before 4.1.4 contains missing authorization vulnerabilities in editUser() and updateUserRights() endpoints that allow authenticated administrators to escalate privileges. Non-SuperAdmin users with edit_user permission can set is_superadmin flag or grant arbitrary rights to escalate to SuperAdmin access.
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: 36%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
phpmyfaqphpmyfaq
𝑥
< 4.1.4
CNA
Common Weakness Enumeration
References
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-985r-q3qp-299h
https://www.vulncheck.com/advisories/phpmyfaq-privilege-escalation-via-missing-authorization-in-edituser-and-updateuserrights
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-985r-q3qp-299h