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>
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 – < publication | publication |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – < publication | publication |
| Microsoft | Microsoft SharePoint Foundation 2013 Service Pack 1 | 15.0.0 – < publication | publication |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
-
Microsoft SharePoint Server-Side Include and ViewState RCE
exploit/windows/http/sharepoint_ssi_viewstate
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Microsoft SharePoint - Remote Code Execution http/cves/2020/CVE-2020-16952.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.