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CVE-2026-111898GHSA-rg4w-2j3r-2hhp

phpMyFAQ 4.2.0-alpha before 4.2.0-beta Account Takeover via Keycloak Implicit Account Linking

thorsten phpMyFAQ
Open in ThreatlineRecord JSON
CVSS
7.7High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 18 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 26% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.2.0-betaFixed versionCVE List
Published17 Oct 2026Updated 18 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 2

  • phpMyFAQaffected: 4.2.0-alpha before 4.2.0-betaCVE List
  • phpMyFAQunaffected: 4.2.0-betaCVE List

References 2