The SEMA API plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘catid’ parameter in all versions up to, and including, 5.27 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The SEMA API WordPress plugin before 4.02 does not properly sanitise and escape some parameters before using them in SQL statements via an AJAX action, leading to SQL Injections exploitable by unauthenticated users