The PWA for WP WordPress plugin before 1.7.72 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/6e495b39-f9ef-45dd-b839-65c71a082f2b/