CVE-2026-73313

CVE-2026-73313: Passkey credential not bound to login account XenForo before 2.3.13 can complete one user's two-step login with a passkey owned by a different user. What happens The passkey manager performs a global lookup using the credential ID supplied in the assertion and correctly verifies...

CVE-2026-73313

XenForo versions before 2.3.13 contain an MFA bypass vulnerability in the passkey TFA provider . During the WebAuthn assertion step, the passkey verification path performs a global credential lookup without validating that the matched credential belongs to the user whose login is pending. This al...