Authenticated code execution via SQL injection
Published Jan 13, 2026 · Updated Jan 13, 2026
SQL injection in Microsoft SharePoint Server 2016, 2019, and Subscription Edition allows remote authenticated users to execute code. Microsoft has not disclosed the affected request handler, parameter, or database query, so the exact untrusted-input operation is not public. A low-privileged SharePoint account is required; successful exploitation grants code execution in the server context without user interaction.
Summary
What happened
SQL injection in Microsoft SharePoint Server 2016, 2019, and Subscription Edition allows remote authenticated users to execute code. Microsoft has not disclosed the affected request handler, parameter, or database query, so the exact untrusted-input operation is not public. A low-privileged SharePoint account is required; successful exploitation grants code execution in the server context without user interaction.
The record
- CVE
- CVE-2026-20947
- Published
- Jan 13, 2026
- Updated
- Jan 13, 2026
- Vendor
- Microsoft
- Product
- Microsoft SharePoint Enterprise Server 2016
- Classifications
- CWE-89, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 13, 2026CVE publishedPublication date reported by the CVE source.
- Jan 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0 <16.0.5535.1001
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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