CVE-2026-24421CWE-862

phpMyFAQ missing authorization exposes /api/setup/backup to any authenticated user

Medium · published January 24, 2026

CVSS v3.1
6.5
EPSS
2%
Percentile
77.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01744 · 77.6th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-01-24T01:43Z
EPSS history
Timeline
  • 24 JAN 01:43Z
    phpMyFAQ missing authorization exposes /api/setup/backup to any authenticated user
    cvelistv5