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CVE-2025-10752

OAuth Single Sign On – SSO (OAuth Client) <= 6.26.12 - Cross-Site Request Forgery

The OAuth Single Sign On – SSO (OAuth Client) plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.26.12. This is due to using a predictable state parameter (base64 encoded app name) without any randomness in the OAuth flow. This makes it possible for unauthenticated attackers to forge OAuth authorization requests and potentially hijack the OAuth flow via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Oauth Client Single Sign On Project Wordpress
Products
Oauth Client Single Sign On Wordpress
CVE-2025-9485

OAuth Single Sign On – SSO (OAuth Client) <= 6.26.12 - Authentication Bypass via get_resource_owner_from_id_token()

The OAuth Single Sign On – SSO (OAuth Client) plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 6.26.12. This is due to the plugin performing unsafe JWT token processing without verification or validation in the `get_resource_owner_from_id_token` function. This makes it possible for unauthenticated attackers to bypass authentication and gain access to any existing user account - including administrators in certain configurations - or to create arbitrary subscriber-level accounts.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Oauth Client Single Sign On Project Wordpress
Products
Oauth Client Single Sign On Wordpress
CVE-2022-3119

OAuth client Single Sign On for WordPress < 3.0.4 - Unauthenticated Settings Update to Authentication Bypass

The OAuth client Single Sign On WordPress plugin before 3.0.4 does not have authorisation and CSRF when updating its settings, which could allow unauthenticated attackers to update them and change the OAuth endpoints to ones they controls, allowing them to then be authenticated as admin if they know the correct email address

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Oauth Client Single Sign On Project
Products
Oauth Client Single Sign On