Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

INFO

Published Date :

2026-01-13T17:56:49.220Z

Last Modified :

2026-01-20T23:03:58.869Z

Source :

microsoft
AFFECTED PRODUCTS

The following products are affected by CVE-2026-20959 vulnerability.

Vendors Products
Microsoft
  • Sharepoint Server
  • Sharepoint Server 2016
  • Sharepoint Server 2019
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-20959.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20959 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact