The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts.

Project Subscriptions

Vendors Products
Wordpress-extensions Subscribe
Oauth Single Sign On Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 11 Nov 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions oauth Single Sign On
Vendors & Products Wordpress-extensions
Wordpress-extensions oauth Single Sign On

Wed, 02 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
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'}


Wed, 02 Sep 2026 08:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-287

Wed, 02 Sep 2026 06:15:00 +0000

Type Values Removed Values Added
Description The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts.
Title OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-09-02T12:26:36.799Z

Reserved: 2026-08-28T07:39:02.672Z

Link: CVE-2026-82183

cve-icon Vulnrichment

Updated: 2026-09-02T10:10:59.750Z

cve-icon NVD

Status : Deferred

Published: 2026-09-02T06:17:19.987

Modified: 2026-09-03T17:50:37.690

Link: CVE-2026-82183

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-11T15:23:27Z

Weaknesses