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Microsoft Security Response CenterCVE-2026-69402

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.

Read the vendor bulletin Get alerts for Microsoft SharePoint Server Subscription Edition
7.3CVSS out of 10High severity
Scope

What the vendor says is affected

  • Microsoft SharePoint Server Subscription Edition

Versions the vendor lists as fixed

  • 16.0.20326.20090
Next step

What the vendor recommends

Install KB5002908.

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-69402View CVSS, KEV, EPSS, and threat context
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