OAuth Single Sign On – SSO (OAuth Client) <= 6.26.12 - Authentication Bypass via get_resource_owner_from_id_token()
| CVE | CVE-2025-9485 |
|---|---|
| CVSS | 9.8 (Critical) |
| Publicly Published | October 3, 2025 |
| Last Updated | October 4, 2025 |
| Researcher |
Jonas Benjamin Friedli
|
Description
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.
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Vulnerability Details for OAuth Single Sign On – SSO (OAuth Client)
| Software Type | Plugin |
|---|---|
| Software Slug | miniorange-login-with-eve-online-google-facebook (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 6.26.13, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in OAuth Single Sign On – SSO (OAuth Client)
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