CVE-2026-75800 Frontegg SAML SSO <= 1.0.1 - Unauthenticated Account Takeover via Unverified SAMLResponse
Unauthenticated attackers can bypass SAML signature verification to log in as any user, including administrators, in the Frontegg SAML SSO WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75800?
CVE-2026-75800 is a critical authentication bypass vulnerability in Unknown Frontegg SAML SSO, published on 12 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2026-75800?
How do I fix CVE-2026-75800?
No fix has been published for CVE-2026-75800 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-75800 being exploited?
There is no known exploitation of CVE-2026-75800 in the wild and no public exploit code.
Sources
Also known as GHSA-97p7-8jv8-2rmm.