CVE-2026-111898

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductphpMyFAQ

PublishedOct 17, 2026

First seenOct 17, 2026

Weakness typeCWE-287Improper authentication

How to fix

Update

thorsten phpMyFAQ4.2.0-beta or later

Vendor advisories

github.com/thorsten/phpMyFAQ/security/advisories/GHSA-rg4w-2j3r-2hhp

Affected products

Product	Affected versions	Fixed in
thorsten phpMyFAQ	4.2.0-alpha ≤ v < 4.2.0-beta	4.2.0-beta

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