MSRC-CVE-2026-69615 — Microsoft Office SharePoint Spoofing Vulnerability

Summary

Impact: Spoofing. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.

Details

I am running SharePoint Server 2016. Do the updates for SharePoint Enterprise Server 2016 also apply to the version I am running?
Yes. The same KB number applies to both SharePoint Server 2016 and SharePoint Enterprise Server 2016. Customers running either version should install the security update to be protected from this vulnerability.

Security updates
16.0.20326.20090 — https://support.microsoft.com/help/5002908

Vulnerabilities 1

Low 3.5

CVE-2026-69615

Microsoft Office SharePoint Spoofing Vulnerability

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.

Microsoft Microsoft SharePoint Server Subscription Edition

Sep 8, 2026

Revision history

2026-09-08 #1
Information published.

References

CVE-2026-69615 Microsoft Office SharePoint Spoofing Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69615
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss