VULNERABILITY INTELLIGENCE

CVE-2020-12676

CVSS score9.1 CRITICAL
EPSS probability2.93%
CISA KEVNot currently listed
Published2020-10-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

FusionAuth fusionauth-samlv2 0.2.3 allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack".

Weakness classification

  • CWE-347: Improper Verification of Cryptographic Signature

Primary references