The Ultimate Product Catalog WordPress plugin before 5.2.6 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/71c5b5b5-8694-4738-8e4b-8670a8d21c86