CVE-2026-111909

HIGH CVSS 4.0: 7.2 EPSS 0.27%
Updated Oct 18, 2026
Phpmyfaq
Parameter Value
CVSS 7.2 (HIGH)
Affected Versions before 4.1.9
Fixed In 4.1.9
Type CWE-269 (Improper Privilege Management)
Vendor Phpmyfaq
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Phpmyfaq Phpmyfaq
cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*
— 4.1.9