The Amen WordPress plugin through 3.3.1 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/e9fe3101-8033-4eee-8b37-06856872e9ef/