CVE-2018-8426

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 Server, Microsoft SharePoint.

• CWE-79

• http://www.securityfocus.com/bid/105208Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1041640Third Party Advisory, VDB Entry
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8426Patch, Vendor Advisory
• http://www.securityfocus.com/bid/105208Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1041640Third Party Advisory, VDB Entry
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8426Patch, Vendor Advisory

Published

Sep 13, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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