Auth bypass in Frontegg Saml Sso
CVE-2026-75800
The Frontegg SAML SSO WordPress plugin through 1.0.1 does not verify the signature or issuer of SAML authentication responses before establishing a session, allowing unauthenticated attackers to log in as any user, including administrators, as well as to create arbitrary accounts.
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Unknown Frontegg Saml Sso
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-75800?
- CVE-2026-75800 is a critical-severity vulnerability in Frontegg Saml Sso, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-09-12.
- How severe is CVE-2026-75800?
- Critical severity. CVSS v3 base score is 9.8 out of 10.