The If-So Dynamic Content Personalization WordPress plugin before 1.8.0.3 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
https://wpscan.com/vulnerability/52fdc271-96f2-4e25-9df2-29a3ce06328c/