---
id: CVE-2026-111909
title: >-
  phpMyFAQ before 4.1.9 Missing Authorization Allows Superadmin Deletion via
  deleteUser API
summary: >-
  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…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-269
vendor: thorsten
product: phpMyFAQ
affected:
  - phpMyFAQ < 4.1.9
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-18T11:18:33.662741Z'
published: '2026-10-17'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T11:42:56.427Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111909'
references:
  - url: >-
      https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7j43-ww55-pm3g
    label: GitHub Security Advisory (GHSA-7j43-ww55-pm3g)
  - url: >-
      https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.9-missing-authorization-allows-superadmin-deletion-via-deleteuser-api
    label: >-
      VulnCheck Advisory: phpMyFAQ before 4.1.9 Missing Authorization Allows
      Superadmin Deletion via deleteUser API
tags:
  - cve.org
ingestedAt: '2026-10-17T19:08:56.819Z'
---

## Overview

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.

## Affected

- `phpMyFAQ < 4.1.9`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.