CVE-2026-75903: Vulnity Security <= 1.4.3 - Unauthenticated Authentication Bypass to Administrator via Exposed Pairing Credentials
The Vulnity Security plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.4.3 This is due to insufficient protection of the delegated-login pairing credential file on Nginx-based installations, where the plugin's generated server configuration snippet guards the wrong directory path. This makes it possible for unauthenticated attackers to retrieve the stored credentials, forge signed REST API requests, and log in as an administrator.
Affected Software
Event History
Frequently Asked Questions
Which deployments are exposed?
The issue affects Vulnity Security versions through 1.4.3 on Nginx-based installations. The vulnerable condition is the plugin-generated Nginx configuration snippet protecting the wrong directory path.
What does an attacker need to exploit this?
No authentication or user interaction is required. An attacker must be able to retrieve the exposed delegated-login pairing credential file, then use the credentials to forge signed REST API requests and authenticate as an administrator.
Is upgrading available?
The affected versions are up to and including 1.4.3. The referenced plugin changes include version 1.4.4, indicating a newer version is available.