Microsoft SharePoint Server 2013 Service Pack 1 allows an elevation of privilege vulnerability when it fails to properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft SharePoint XSS Vulnerability".
http://www.securityfocus.com/bid/100725
http://www.securitytracker.com/id/1039329
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8629
Source: MITRE
Published: 2017-09-13
Updated: 2017-09-20
Type: CWE-79
Base Score: 3.5
Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N
Impact Score: 2.9
Exploitability Score: 6.8
Severity: LOW
Base Score: 5.4
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Impact Score: 2.7
Exploitability Score: 2.3
Severity: MEDIUM