CVE-2018-8650
A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft Office SharePoint XSS Vulnerability." This affects Microsoft SharePoint.
Date published : 2018-12-12
http://www.securityfocus.com/bid/106170
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8650