CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. It affects WordPress. Exploitation may require the attacker to be authenticated.
CVE
CVE-2025-9485
Severity
CRITICAL
CVSS
9.8
EPSS
0.56%
WordPress
Original NVD 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.