CVE-2026-111909

High

Description

phpMyFAQ before 4.1.9 contains a missing authorization vulnerability in the deleteUser() API that allows authenticated non-superadmin users with delete_user permission to delete superadmin accounts. Attackers can send a DELETE request to /admin/api/user/delete with a superadmin's userId other than 1, removing administrative access and accountability.

SeverityHigh

CVSS8.1

Exploit probability—

ProductphpMyFAQ

PublishedOct 17, 2026

First seenOct 17, 2026

Weakness typeCWE-269Improper privilege management

How to fix

Update

thorsten phpMyFAQ4.1.9 or later

Vendor advisories

github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7j43-ww55-pm3g

Affected products

Product	Affected versions	Fixed in
thorsten phpMyFAQ	v < 4.1.9	4.1.9

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