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Microsoft Security Response CenterCVE-2026-47634

Microsoft SharePoint Server Spoofing Vulnerability

HighVendor CVSS 7.3 / 10 1 CVE Published Jun 9, 2026 at 7:00 AM UTC

Summary

Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Products covered

  • Microsoft SharePoint Server 2019

  • Microsoft SharePoint Server Subscription Edition

Remediation

Install KB5002874. Install KB5002873.

Vendor-listed fixes

  • 16.0.10417.20153

  • 16.0.19725.20384

CVEs in this advisory 1

Updates

  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.