CVE-2026-111905: phpMyFAQ insecure direct object reference in admin user API

CVE-2026-111905 · Severity: medium · CVSS 6 · Published 2026-10-17

phpMyFAQ is a frequently-asked-questions knowledge base system commonly used in business support portals. The admin REST API endpoint that retrieves user data exposes live TOTP two-factor authentication secrets without proper access controls, allowing delegated administrators to steal a SuperAdmin's 2FA credential and gain full account access, bypassing two-factor authentication entirely.

Technologies: Phpmyfaq. Vendors: Phpmyfaq.

Quick answers

Is CVE-2026-111905 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111905 being exploited in the wild.
How severe is CVE-2026-111905?
Medium severity, with a CVSS score of 6, published 17 October 2026.
Which products and versions are affected?
Phpmyfaq 3.2.0 before 4.1.9; 4.2.0-alpha before 4.2.0-beta.
Is there a fix for CVE-2026-111905?
Yes: fixed in phpMyFAQ 4.1.9, 4.2.0-beta. Until then: Restrict access to the /admin/api/user/data endpoint to SuperAdmin users only, or disable the endpoint until upgrading if user-management delegation is not required. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111905 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-111905?
Check whether you run Phpmyfaq at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: phpMyFAQ 4.1.9, 4.2.0-beta

Restrict access to the /admin/api/user/data endpoint to SuperAdmin users only, or disable the endpoint until upgrading if user-management delegation is not required.

Technical details

An insecure direct object reference (IDOR) vulnerability in GET /admin/api/user/data/{userId} returns the raw database row for any user, including the secret column containing the live TOTP seed, to any authenticated administrator holding user-management rights, without verifying that the acting user is a SuperAdmin or that the target is protected. An attacker with delegated admin privileges can enumerate arbitrary user IDs to extract a SuperAdmin's TOTP secret, then generate valid time-based one-time passwords to impersonate them. The vulnerability stems from the read endpoint's lack of the SuperAdmin/protected-target guard that the write sibling endpoints (editUser, deleteUser, etc.) all implement.

Affected products

  • phpMyFAQ phpMyFAQ 3.2.0 before 4.1.9; 4.2.0-alpha before 4.2.0-beta

Timeline

  • 2026-10-17: disclosed
  • 2026-10-03: advisory

References

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