cvedb.io
CVE-2026-27836
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-02-27T20:21:40.330 · Last modified 2026-06-17T10:27:46.023

Summary

phpMyFAQ is an open source FAQ web application. Prior to version 4.0.18, the WebAuthn prepare endpoint (`/api/webauthn/prepare`) creates new active user accounts without any authentication, CSRF protection, captcha, or configuration checks. This allows unauthenticated attackers to create unlimited user accounts even when registration is disabled. Version 4.0.18 fixes the issue.

Affected products

phpmyfaq — phpmyfaq

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.