CVE-2026-124432
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
74/100
Published: 2026-11-08
Modified: 2026-11-09
First seen: 2026-11-08
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
X
AT:
None
VC:
Low
VI:
Low
VA:
Low
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.
Weakness Classification (1)
References & Advisories (2)
vendor-advisory
third-party-advisory