The Olevmedia Shortcodes WordPress plugin through 1.1.9 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/e854efee-16fc-4379-9e66-d2883e01fb32