CVE-2026-82842

SAML Single Sign On < 6.0.0 - Unauthenticated Privilege Escalation via Account Matching

Published Sep 20, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions saml Single Sign On
Vendors & Products Wordpress-extensions
Wordpress-extensions saml Single Sign On
Type Values Removed Values Added
Weaknesses CWE-20
CWE-285
CWE-639
Type Values Removed Values Added
Weaknesses CWE-269
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-20
CWE-285
CWE-639
Type Values Removed Values Added
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.
Title SAML Single Sign On < 6.0.0 - Unauthenticated Privilege Escalation via Account Matching
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Sep 20, 2026, 1:49 PM
Reserved
Aug 31, 2026, 8:27 AM
Status
Deferred
Published
Sep 20, 2026, 7:16 AM
Modified
Sep 21, 2026, 1:34 PM