CVE-2020-16952 Microsoft SharePoint Remote Code Execution Vulnerability
Attackers can execute arbitrary code by uploading a malicious SharePoint application package, requiring user interaction to upload the file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-16952?
CVE-2020-16952 is a high-severity code injection vulnerability in Microsoft Sharepoint Enterprise Server, published on 16 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
<p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.</p> <p>Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint.</p> <p>The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.</p>
Weakness: CWE-346
Which versions are affected by CVE-2020-16952?
It affects 3 products.
Products include Microsoft Sharepoint Enterprise Server, Microsoft Sharepoint Foundation, Microsoft Sharepoint Server.
How do I fix CVE-2020-16952?
No fix has been published for CVE-2020-16952 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2020-16952 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-16952 exists.
Public exploit code: 1 Metasploit module and 1 Nuclei template.
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-4xg2-wcmm-2j45.