CVE-2026-75800Network attack vectorHinoki check available

Unauthenticated account takeover via unverified SAML responses

Published Sep 12, 2026 · Updated Sep 12, 2026

Authentication bypass in Frontegg SAML SSO 1.0.1 and earlier allows remote attackers to obtain any WordPress user session. The plugin's SAML response handler accepts the SAMLResponse assertion without verifying its signature or issuer before establishing a WordPress session. No prior account is required; a forged assertion can select an administrator identity or trigger creation of an arbitrary account.

CVSS severityUnavailable
Unscored
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authentication bypass in Frontegg SAML SSO 1.0.1 and earlier allows remote attackers to obtain any WordPress user session. The plugin's SAML response handler accepts the SAMLResponse assertion without verifying its signature or issuer before establishing a WordPress session. No prior account is required; a forged assertion can select an administrator identity or trigger creation of an arbitrary account.

The record

CVE
CVE-2026-75800
Published
Sep 12, 2026
Updated
Sep 12, 2026
Vendor
Frontegg
Product
Frontegg SAML SSO
Classifications
CWE-347, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Frontegg · Frontegg SAML SSOversion=0 <=1.0.1

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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