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CVE-2026-27836

PoC —
CVSS 3.1
7.5 high
EPSS
<1%p35
Published
()
Modified
Description

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.

Vendors
phpmyfaq
Products
phpmyfaq
Weakness
CWE-862
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

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