{"id":"CVE-2026-111911","summary":"phpMyFAQ 4.0.0 before 4.1.9 Authentication Bypass via WebAuthn Credential Injection","details":"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.","modified":"2026-10-18T10:45:21.158635180Z","published":"2026-10-17T18:46:28.833Z","related":["GHSA-g6cq-6rqg-6c9p","GHSA-rg9h-f29v-xhxr"],"database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-287"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111911.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111911.json"},{"type":"ADVISORY","url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-g6cq-6rqg-6c9p"},{"type":"ADVISORY","url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-rg9h-f29v-xhxr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111911"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/phpmyfaq-4.0.0-before-4.1.9-authentication-bypass-via-webauthn-credential-injection"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/thorsten/phpmyfaq","events":[{"introduced":"9bf3d792e67da3c04217002a9642fdf74ced9554"},{"fixed":"ecd0de3cff20d4a06e8ad17eef7c22ef227f0af9"}],"database_specific":{"extracted_events":[{"introduced":"4.0.0"},{"fixed":"4.1.9"}],"source":"AFFECTED_FIELD"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111911.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}