The Rock Convert WordPress plugin before 2.11.0 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/7b51b1f0-17ca-46b7-ada1-20bd926f3023