The Starbox WordPress plugin before 3.5.2 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).
https://wpscan.com/vulnerability/cbfcbe57-553d-490a-b7f3-48aa0022f63d/