VULNERABILITY INTELLIGENCE

CVE-2026-76214

CVSS score7.4 HIGH
EPSS probability0.39%
CISA KEVNot currently listed
Published2026-08-19
Last modified2026-09-01
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

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 successful WebAuthn assertion to replay it indefinitely and authenticate as the user without any interaction or hardware key.

Weakness classification

  • disclosure@vulncheck.com: CWE-294

Primary references