CVE-2018-8431: Microsoft SharePoint Enterprise Server

Medium severity, CVSS 5.4. EPSS: 2.3% chance of exploitation in the next 30 days.

An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft SharePoint Elevation of Privilege Vulnerability." This affects Microsoft SharePoint Server, Microsoft SharePoint. This CVE ID is unique from CVE-2018-8428.

Affected products

• Microsoft SharePoint Enterprise Server: version 2013 only; version 2016 only
• Microsoft SharePoint Server: version 2010 only

Published 2018-09-13. Last modified 2026-06-17.