Description The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
When creating a new widget, insert the following payload in the "Max width" field: `250" onmouseover="alert(/XSS/)"`
View the site on the frontend to see the XSS