The WP Maps WordPress plugin before 4.7.2 does not sanitise and escape some of its Map 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/83ddd432-309f-4ff5-974c-fdc9c67d1051/