CVE-2026-20945 — Cross-site Scripting in Microsoft Sharepoint Enterprise Server 2016

CWE-79 — Cross-site Scripting3 documents3 sources
Severity
4.6MEDIUMNVD
EPSS
0.1%
top 81.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Microsoft Sharepoint Enterprise Server 2016Microsoft Sharepoint Server 2019Microsoft Sharepoint Server Subscription Edition
Timeline
PublishedApr 14

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:NExploitability: 2.1 | Impact: 2.5

Affected Packages3 packages

▶CVEListV5microsoft/microsoft_sharepoint_server_201916.0.0 — 16.0.10417.20114
▶CVEListV5microsoft/microsoft_sharepoint_enterprise_server_201616.0.0 — 16.0.5548.1003
▶CVEListV5microsoft/microsoft_sharepoint_server_subscription_edition16.0.0 — 16.0.19725.20210

🔴Vulnerability Details

2
GHSA
GHSA-2c76-42fg-9f8g: Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to p↗2026-04-14
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CVEList
Microsoft SharePoint Server Spoofing Vulnerability↗2026-04-14
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