CVE-2026-111898
Published:October 17, 2026
Updated:October 20, 2026
phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows Keycloak users to take over local accounts by matching preferred_username or email. Attackers controlling a Keycloak identity with a colliding username or unverified email can log in through /auth/keycloak/authorize to bind their subject and gain superadmin privileges.
Affected Packages
phpmyfaq/phpmyfaq (PHP):
Affected version(s) >=4.2.0-alpha <4.2.0-betaFix Suggestion:
Update to version 4.2.0-betathorsten/phpmyfaq (PHP):
Affected version(s) >=4.2.0-alpha <4.2.0-betaFix Suggestion:
Update to version 4.2.0-betaRelated Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Authentication
EPSS
Base Score:
0.34