The Spotlight Social Feeds WordPress plugin before 1.4.3 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks
https://wpscan.com/vulnerability/14b4f0c5-c7b1-4ac4-8c9c-f8c35ca5de4a