Missing Authorization in phpMyFAQ - CVE-2026-27836
Published: April 23, 2026 / Updated: April 23, 2026
Vulnerability identifier: #VU126895
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-27836
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to bypass authorization process.
The vulnerability exists due to incorrect authorization within the WebAuthn prepare endpoint. A remote attacker can create arbitrary accounts.
Affected software
phpMyFAQ
How to mitigate CVE-2026-27836
Install updates from vendor's website.
phpMyFAQ - update to 4.0.18