Input validation vulnerability in Co-marquage service-public.fr 0.5.71

A plugin for WordPress called Co-marquage service-public.fr has a security issue where it is possible for attackers to inject harmful code into pages. This can only be done by authenticated users with contributor-level access or higher. The issue is present in all versions up to and including 0.5.71 and is due to the plugin not properly filtering and escaping user input. This means that whenever a user visits a page with the injected code, it will run automatically.