The WP phpMyAdmin WordPress plugin before 5.2.0.4 does not escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed (for example in multisite setup)
https://wpscan.com/vulnerability/5be611e8-5b7a-4579-9757-45a4c94a53ca