Cross-site scripting (XSS) vulnerability in Synology DiskStation Manager (DSM) before 5.2-5565 Update 1 allows remote attackers to inject arbitrary web script or HTML via the "compound" parameter to entry.cgi.
https://www.synology.com/en-global/releaseNote/DS214play
https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-4674