Understanding and Defending Against Unauthenticated Bypass Vulnerability in Headless Single Sign On
This educational analysis delves into CVE-2026-28148, a critical unauthenticated bypass vulnerability in the Headless Single Sign On plugin for WordPress. The vulnerability, with a CVSS score of 9.8, affects versions up to 1.6 and allows for unauthorized access, potentially leading to significant security breaches. We will explore the root cause, attack surface, exploitation mechanics, and provide defensive strategies.