High severity7.4NVD Advisory· Published Aug 19, 2026· Updated Sep 1, 2026
CVE-2026-76214
CVE-2026-76214
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <4.1.7
Patches
Vulnerability mechanics
References
2- github.com/thorsten/phpMyFAQ/security/advisories/GHSA-f534-wv9g-wx2wnvdMitigationVendor Advisory
- www.vulncheck.com/advisories/phpmyfaq-before-webauthn-replay-attack-via-challengenvdThird Party Advisory
News mentions
1- PhpMyFAQ: 14 Vulnerabilities Including Auth Bypass Patched in Single DisclosureVypr Intelligence · Aug 19, 2026