CVE-2026-111909

EUVD-2026-103311
phpMyFAQ before 4.1.9 contains a missing authorization vulnerability in the deleteUser() API that allows authenticated non-superadmin users with delete_user permission to delete superadmin accounts. Attackers can send a DELETE request to /admin/api/user/delete with a superadmin's userId other than 1, removing administrative access and accountability.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 18.77%
Common Weakness Enumeration
References
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7j43-ww55-pm3g
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.9-missing-authorization-allows-superadmin-deletion-via-deleteuser-api