CVE-2017-16907
In Horde Groupware 5.2.19 and 5.2.21, there is XSS via the Color field in a Create Task List action.
Date published : 2017-11-20
https://github.com/horde/base/commit/fb2113bbcd04bd4a28c46aad0889fb0a3979a230
http://code610.blogspot.com/2017/11/rce-via-xss-horde-5219.html