CVE-2026-76214 phpMyFAQ before 4.1.7 WebAuthn Replay Attack via Challenge

phpMyFAQ before 4.1.7 fails to persist the WebAuthn login challenge generated by prepareForLogin, because neither WebAuthn controller saves the mutated key objects back to the database. At login the anti-replay comparison is skipped by its own null guard, allowing an attacker who captures a...

PT-2026-78396

Name of the Vulnerable Software and Affected Versions phpMyFAQ versions prior to 4.1.7 Description The software fails to persist the WebAuthn login challenge generated by the prepareForLogin function because the WebAuthn controller does not save the mutated key objects back to the database. Durin...

phpmyfaq -- multiple vulnerabilities

phpMyFAQ team reports: The WebAuthn login flow never persists the challenge it issues, so the replay guard never runs. An attacker who captures a valid assertion can replay it to authenticate as the victim. The brute-force throttle protecting the administration two-factor prompt is scoped to the...