The jwp-a11y WordPress plugin through 4.1.7 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/66b914ba-4253-4849-a38a-05ab246a9a32/