The Contact Bank WordPress plugin through 3.0.30 does not sanitise and escape some of its Form 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/6d796b83-03c0-49f8-8d07-5c63ce8a32b9