The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed.
1. Navigate to Settings -> Bold Builder -> Bold Builder Settings and enter ββ into the βColor Schemesβ input field. 2. Click Save Changes. 3. You will observe that the payload successfully got stored into the database and when you are triggering the same functionality at that time JavaScript payload is executing successfully and we are getting a pop-up.