CVE-2026-24421
MEDIUMphpmyfaq < 4.0.17 - Authenticated Missing Authorization in Setup Backup Endpoint
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2026-24421. PoCs published by contact.
AI-analyzed exploit summary The exploit demonstrates an improper authorization vulnerability in phpMyFAQ <= 4.0.16, where authenticated non-admin users can trigger a configuration backup via the /api/setup/backup endpoint. The endpoint lacks proper permission checks, allowing low-privileged users to generate sensitive backups.
Description
phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below have flawed authorization logic which exposes the /api/setup/backup endpoint to any authenticated user despite their permissions. SetupController.php uses userIsAuthenticated() but does not verify that the requester has configuration/admin permissions. Non-admin users can trigger a configuration backup and retrieve its path. The endpoint only checks authentication, not authorization, and returns a link to the generated ZIP. This issue is fixed in version 4.0.17.
Exploits (1)
The exploit demonstrates an improper authorization vulnerability in phpMyFAQ <= 4.0.16, where authenticated non-admin users can trigger a configuration backup via the /api/setup/backup endpoint. The endpoint lacks proper permission checks, allowing low-privileged users to generate sensitive backups.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N