The Calculated Fields Form WordPress plugin before 5.2.62 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/da099e52-7f7b-4d76-a0bc-a46315510e0a/