CVE-2020-12676

PoC ×4—

CVSS 3.1

9.1 critical

EPSS

3%p86

Published

Oct 2, 2020 (Oct 2, 2020)

Modified

Jun 17, 2026

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".

Vendors: fusionauth
Products: samlv2
Weakness: CWE-347
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (2.9%)

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