The SEUR Oficial plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'change_service' parameter in all versions up to, and including, 2.2.11 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 SEUR plugin, in its versions prior to 2.5.11, is vulnerable to time-based SQL injection through the use of the ‘id_order’ parameter of the ‘/modules/seur/ajax/saveCodFee.php’ endpoint.

A vulnerability has been found in Secure Systems Engineering Connaisseur up to 3.3.0 and classified as problematic. This vulnerability affects unknown code of the file connaisseur/res/targets_schema.json of the component Delegation Name Handler. The manipulation leads to inefficient regular expression complexity. The complexity of an attack is rather high. The exploitation appears to be difficult. Upgrading to version 3.3.1 is able to address this issue. The name of the patch is 524b73ff7306707f6d3a4d1e86401479bca91b02. It is recommended to upgrade the affected component.

The SEUR Oficial WordPress plugin before 1.7.2 creates a PHP file with a random name when installed, even though it is used for support purposes, it allows to download any file from the web server without restriction after knowing the URL and a password than an administrator can see in the plugin settings page.

The SEUR Oficial WordPress plugin before 1.7.0 does not sanitize and escape some of its settings allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed