What’s Vulnerable › Vulnerabilities

CVE-2018-8426

• Severity: medium (CVSS 5.4 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-09-13 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• Microsoft Sharepoint Enterprise Server 2013: all versions
• Microsoft Sharepoint Enterprise Server 2016: all versions
• Microsoft Sharepoint Server 2010: all versions
• Microsoft Corporation SharePoint: Enterprise Server 2013 Service Pack 1, Enterprise Server 2016
• Microsoft SharePoint Server: 2010 Service Pack 2

References

• http://www.securityfocus.com/bid/105208
• http://www.securitytracker.com/id/1041640
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8426
• http://www.securityfocus.com/bid/105208
• http://www.securitytracker.com/id/1041640
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8426

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