CVE-2026-75800 Frontegg SAML SSO WordPress plugin - Authentication Bypass

Frontegg SAML SSO WordPress plugin <= 1.0.1 contains a broken authentication caused by lack of signature and issuer verification in SAML responses, letting unauthenticated attackers log in as any user or create accounts, exploit requires no authentication.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.62% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
12 September 2026
Updated
15 October 2026
Weakness
CWE-287

Vendor fix

Update to the latest version beyond 1.0.1.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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