The FULL – Cliente plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg & remove_query_arg without appropriate escaping on the URL in all versions up to, and including, 3.1.22. 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 FULL – Cliente plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the license plan parameter in all versions up to, and including, 3.1.12 due to insufficient input sanitization and output escaping as well as missing authorization and capability checks on the related functions. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that will execute whenever an administrative user accesses wp-admin dashboard