The plugin does not sanitize 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).
View the template here CVE-2023-2178.yaml
References:
https://wpscan.com/vulnerability/e84b71f9-4208-4efb-90e8-1c778e7d2ebb