Main Vulnerability Database Vulnerabilities #VU121324

SQL injection in Microsoft products - CVE-2026-20947

Published: January 13, 2026

Vulnerability identifier: #VU121324

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-20947

CWE-ID: CWE-89

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data in Microsoft SharePoint Server. A remote user can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Affected software

Microsoft SharePoint Server Subscription Edition
Microsoft SharePoint Enterprise Server
Microsoft SharePoint Server

How to mitigate CVE-2026-20947

Install updates from vendor's website.

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20947

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