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OpenAdvisories
Medium · 4.6 CVE-2026-20959 EUVD-2026-2101GHSA-wvw4-rf55-ww3f

Microsoft SharePoint Server Spoofing Vulnerability

Published Jan 13, 2026 · Updated Jul 30, 2026 · Assigned by microsoft

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.

Affected products

VendorProductAffectedFixed
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 – < 16.0.5535.1001 16.0.5535.1001
Microsoft Microsoft SharePoint Server 2019 16.0.0 – < 16.0.10417.20083 16.0.10417.20083
Microsoft Microsoft SharePoint Server Subscription Edition 16.0.0 – < 16.0.19127.20442 16.0.19127.20442

Advisories 3

References