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Microsoft Security Response CenterCVE-2026-70326

Microsoft SharePoint Server Elevation of Privilege Vulnerability

Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Read the vendor bulletin Get alerts for Microsoft SharePoint Server Subscription Edition
8.8CVSS out of 10High severity
Scope

What the vendor says is affected

  • Microsoft SharePoint Server Subscription Edition

Versions the vendor lists as fixed

  • 16.0.19725.20522
Next step

What the vendor recommends

Install KB5002893.

Review the complete instructions on the vendor's site
Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • The vendor changed its remediation guidance.
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-2026-70326View CVSS, KEV, EPSS, and threat context
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