Cross-Site Scripting Vulnerability in Microsoft SharePoint
CVE-2026-47634

7.3HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sharepoint Server 2019
Microsoft Sharepoint Server Subscription Edition
Vendor
CVE Published:
9 June 2026

What is CVE-2026-47634?

An improper neutralization of user input during web page generation in Microsoft SharePoint can lead to cross-site scripting vulnerabilities. This flaw allows authorized attackers to inject malicious scripts, potentially enabling them to spoof content and perform unauthorized actions over a network. Organizations using affected versions of SharePoint should prioritize the implementation of security patches to mitigate this risk.

Affected Version(s)

Microsoft SharePoint Server 2019 x64-based Systems 16.0.0 < 16.0.10417.20153

Microsoft SharePoint Server Subscription Edition x64-based Systems 16.0.0 < 16.0.19725.20384

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.