CVE-2026-111898

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-rg4w-2j3r-2hhp
https://www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha-before-4.2.0-beta-account-takeover-via-keycloak-implicit-account-linking
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-rg4w-2j3r-2hhp

Configurations

No configuration.

History

18 Oct 2026, 12:17

Type	Values Removed	Values Added
References	~~() https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-rg4w-2j3r-2hhp -~~	() https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-rg4w-2j3r-2hhp -

17 Oct 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-17 19:16

Updated : 2026-10-18 12:17

NVD link : CVE-2026-111898

Mitre link : CVE-2026-111898

CVE.ORG link : CVE-2026-111898

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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