The Login with Cognito WordPress plugin through 1.4.8 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/ac2e3fea-e1e6-4d90-9945-d8434a00a3cf