CVE-2026-27836

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 us...

phpMyFAQ Allows Unauthenticated Account Creation via WebAuthn Prepare Endpoint

Summary 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. Details File:...

CVE-2026-27836 phpMyFAQ Allows Unauthenticated Account Creation via WebAuthn Prepare Endpoint

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 us...