The Embed Peertube Playlist WordPress plugin before 1.10 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/bc15bac7-8241-472a-a7c1-58070714501d/