The WPForms WordPress plugin before 1.9.2.3 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/82989909-9745-4c9a-abc7-c1adf8c2b047/