CVE-2026-76214 (GCVE-0-2026-76214)
Vulnerability from cvelistv5
Published
2026-08-19 14:01
Modified
2026-08-21 11:21
Severity ?
9.1 (Critical) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-294 - Authentication Bypass by Capture-replay
Summary
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.
References
Impacted products
Vendor Product Version
thorsten phpMyFAQ Version: 0   ≤
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