Description
phpMyFAQ 4.0.0 before 4.1.9 contains an authentication bypass vulnerability where WebAuthn registration endpoints attach credentials to any account without authentication or challenge validation. Attackers can stage a victim username, submit a forged fmt=none attestation to register a passkey, then log in bypassing passwords and TOTP for account takeover.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| thorsten | phpMyFAQ | 4.0.0 – < 4.1.9 | 4.1.9 |
References
- GitHub Security Advisory (GHSA-g6cq-6rqg-6c9p) vendor-advisory
- GitHub Security Advisory (GHSA-rg9h-f29v-xhxr) vendor-advisory
- VulnCheck Advisory: phpMyFAQ 4.0.0 before 4.1.9 Authentication Bypass via WebAuthn Credential Injection third-party-advisory