Missing Critical Step in Authentication in phpMyFAQ - #VU140885
Published: August 4, 2026
Vulnerability identifier: #VU140885
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-304
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to bypass two-factor authentication and fully compromise an account.
The vulnerability exists due to missing critical steps in authentication in the remember-me authentication flow when processing a login with the remember-me option enabled and a subsequent cookie-based login. A remote user can obtain a remember-me cookie before second-factor verification and replay that cookie to bypass two-factor authentication and fully compromise an account.
The issue affects accounts with two-factor authentication enabled, and the attacker must possess valid username and password credentials.
Affected software
phpMyFAQ
Remediation
Install security update from vendor's website.
phpMyFAQ - update to 4.1.7