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.

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History

Sat, 17 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title phpMyFAQ 4.2.0-alpha before 4.2.0-beta Account Takeover via Keycloak Implicit Account Linking
First Time appeared Phpmyfaq
Phpmyfaq phpmyfaq
Weaknesses CWE-287
CPEs cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*
Vendors & Products Phpmyfaq
Phpmyfaq phpmyfaq
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-17T18:46:20.655Z

Reserved: 2026-10-17T12:16:44.850Z

Link: CVE-2026-111898

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-17T19:16:31.647

Modified: 2026-10-17T19:16:31.757

Link: CVE-2026-111898

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses