CVE-2026-111909

phpMyFAQ before 4.1.9 Missing Authorization Allows Superadmin Deletion via deleteUser API

State: Published
Severity: 7.2 High
Published: Oct 17, 2026
Updated: Oct 18, 2026
Reserved: Oct 17, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	7.2 High	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	VulnCheck
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H	VulnCheck

Weaknesses

CWE-269 Improper Privilege Management

Affected Products

Product	Versions
phpMyFAQthorsten	before 4.1.9Affected 4.1.9Not affected

References

GitHub Security Advisory (GHSA-7j43-ww55-pm3g)vendor-advisory
VulnCheck Advisory: phpMyFAQ before 4.1.9 Missing Authorization Allows Superadmin Deletion via deleteUser APIthird-party-advisory

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