The YaDisk Files WordPress plugin through 1.2.5 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/114aeaf7-32a5-4510-a497-92cc0951b022/