{"id":"CVE-2026-124432","published":"2026-11-08T14:18:09.297","lastModified":"2026-11-09T15:17:15.577","description":"phpMyFAQ 4.1.9 before 4.1.11 and 4.2.0 pre-releases before 4.2.0-beta.3 contain an account enumeration vulnerability in the unauthenticated POST /api/webauthn/prepare-login endpoint, which returns stable stored credential IDs for passkey-registered accounts but an md5(time())-derived fallback ID otherwise. Unauthenticated attackers can compare allowCredentials IDs from requests sent more than one second apart, without rate limiting, to identify existing passkey-registered accounts and their credential IDs.","cvssScore":7.3,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","cwes":["CWE-204"],"vendors":[],"products":[],"references":[{"url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-2rvx-pqfw-q35r","tags":[]},{"url":"https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.11-and-4.2.0-beta.3-account-enumeration-via-webauthn-prepare-login","tags":[]},{"url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-2rvx-pqfw-q35r","tags":[]}],"exploitRefs":[{"url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-2rvx-pqfw-q35r","tags":[]},{"url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-2rvx-pqfw-q35r","tags":[]}],"hasPoc":true,"ai":null}