Incorrect authorization in phpMyFAQ - CVE-2026-111909
Published: November 10, 2026
Vulnerability identifier: #VU164485
CSH Severity: Medium
CVSS v4: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-111909
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to delete superadmin accounts in phpMyFAQ, potentially causing loss of administrative access and accountability.
The vulnerability exists due to a missing superadmin authorization check in UserController.php's deleteUser() method when processing account deletion requests. A remote user can use a non-superadmin account with the delete_user permission to send a DELETE request to /admin/api/user/delete targeting a superadmin account whose ID is not 1 to delete that account.
Affected software
phpMyFAQ
How to mitigate CVE-2026-111909
Install security update from vendor's website.
phpMyFAQ - update to 4.1.9