CVE-2020-0971 File upload in Microsoft SharePoint Enterprise Server
Attackers can achieve remote code execution in Microsoft SharePoint by uploading malicious application packages due to insufficient source markup validation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-0971?
CVE-2020-0971 is a high-severity vulnerability in Microsoft Sharepoint Enterprise Server, published on 15 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0920, CVE-2020-0929, CVE-2020-0931, CVE-2020-0932, CVE-2020-0974.
Weakness: CWE-434
Which versions are affected by CVE-2020-0971?
It affects 3 products.
Products include Microsoft Sharepoint Enterprise Server, Microsoft Sharepoint Foundation, Microsoft Sharepoint Server.
How do I fix CVE-2020-0971?
No fix has been published for CVE-2020-0971 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-0971 being exploited?
There is no known exploitation of CVE-2020-0971 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Enterprise Server
- CVE-2019-0604 Microsoft SharePoint Remote Code Execution
- CVE-2023-24955 Microsoft SharePoint Server Code Injection
- CVE-2025-49706 Microsoft SharePoint Improper Authentication
- CVE-2020-1210 Microsoft SharePoint Remote Code Execution Vulnerability
- CVE-2020-1595 Microsoft SharePoint Remote Code Execution Vulnerability
Sources
Also known as GHSA-fmcx-pmpg-q87j.