In IceWarp Webmail Server through 11.4.4.1, there is XSS in the /webmail/ color parameter.
https://packetstormsecurity.com/files/156103/IceWarp-WebMail-11.4.4.1-Cross-Site-Scripting.html
https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-29378
https://cxsecurity.com/issue/WLB-2020010205
http://packetstormsecurity.com/files/156103/IceWarp-WebMail-11.4.4.1-Cross-Site-Scripting.html