Authorization bypass through user-controlled key in phpMyFAQ - CVE-2026-111905
Published: November 10, 2026
Vulnerability identifier: #VU164489
CSH Severity: Low
CVSS v4: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-111905
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose other users' live TOTP secrets and bypass their two-factor authentication, including SuperAdmin accounts.
The vulnerability exists due to authorization bypass through a user-controlled key in phpMyFAQ's GET /admin/api/user/data/{userId} endpoint when returning unsanitized user records without SuperAdmin or protected-target checks. A remote user can use delegated USER_ADD, USER_EDIT, and USER_DELETE rights to request another user's ID, retrieve the secret, and generate valid second-factor codes to bypass two-factor authentication.
Affected software
phpMyFAQ
How to mitigate CVE-2026-111905
Install security update from vendor's website.
phpMyFAQ - update to 4.1.9