CVE-2026-82842
Received Received - Intake

SAML Authentication Bypass in WordPress Plugin

Publication date: 2026-09-20

Last updated on: 2026-09-20

Assigner: WPScan

Description
The SAML Single Sign On WordPress plugin before 6.0.0 does not honour the configured criterion for linking an incoming single sign-on identity to a WordPress account, always resolving the identity by login name whatever the site has chosen, which allows an attacker who can have the site's identity provider assert a login name of their choosing to authenticate as any account, including an administrator, without proving ownership of that account.

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Meta Information

Published
2026-09-20
Last Modified
2026-09-20
Generated
2026-09-20
AI Q&A
2026-09-20
EPSS Evaluated
N/A
NVD
CVE-2026-82842
EUVD
EUVD-2026-83667

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
miniorange saml_single_sign_on to 6.0.0 (exc)
wpsecure saml_single_sign_on to 6.0.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

The SAML Single Sign On WordPress plugin before version 6.0.0 has a flaw where it ignores the configured method for linking a single sign-on identity to a WordPress account. Instead, it always matches identities by login name, allowing an attacker to authenticate as any user, including administrators, by manipulating the login name asserted by the identity provider without proving ownership.

Detection Guidance

Check the installed version of the SAML Single Sign On WordPress plugin. If it is below 6.0.0, the system is vulnerable. Use commands like 'wp plugin list' in WordPress CLI or inspect the plugin directory for version details.

Impact Analysis

An attacker could gain unauthorized access to any WordPress account, including administrator accounts, by exploiting this flaw. This could lead to complete control over the website, data theft, or further attacks on the system.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements under GDPR and HIPAA. It may result in data breaches, unauthorized data exposure, and failure to meet security and privacy standards.

Mitigation Strategies

Update the SAML Single Sign On plugin to version 6.0.0 or later immediately. Disable the plugin temporarily if an update is not immediately available. Review user accounts for unauthorized access.

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