The WP Ghost (Hide My WP Ghost) – Security & Firewall plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'replaceHeadersAndTags' function in versions up to, and including, 7.0.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user clicks on the injected link.

The WP Ghost (Hide My WP Ghost) – Security & Firewall plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 5.4.01 via the showFile function. This makes it possible for unauthenticated attackers to read the contents of specific file types on the server, which can contain sensitive information.

The WP Ghost (Hide My WP Ghost) – Security & Firewall plugin for WordPress is vulnerable to Login Page Dislcosure in all versions up to, and including, 5.3.02. This is due to the plugin not properly restricting the /wp-register.php path. This makes it possible for unauthenticated attackers to discover the hidden login page location.