Vulnerability · Published Apr 1, 2026 · Assigned by VulnCheck
CVE-2025-71279XenForo Passkey Security Bypass
Critical 9.8
In plain English
A critical-severity improper authentication in XenForo from XenForo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 60.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
XenForo before 2.3.7 contains a security issue affecting Passkeys that have been added to user accounts. An attacker may be able to compromise the security of Passkey-based authentication.
Affected products (as reported)
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- XenForo 2.3.7 Released (Includes Security Fixes) vendor-advisory, patch
- VulnCheck Advisory: XenForo Passkey Security Bypass third-party-advisory