CVE-2021-27076 Microsoft SharePoint Server Remote Code Execution Vulnerability
Attackers can execute arbitrary code on Microsoft SharePoint Server, requiring immediate patching by administrators.
- 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-2021-27076?
CVE-2021-27076 is a high-severity code injection vulnerability in Microsoft Sharepoint Foundation, published on 11 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Microsoft SharePoint Server Remote Code Execution Vulnerability
Which versions are affected by CVE-2021-27076?
It affects 3 products.
Products include Microsoft Business Productivity Servers, Microsoft Sharepoint Foundation, Microsoft Sharepoint Server.
How do I fix CVE-2021-27076?
No fix has been published for CVE-2021-27076 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-2021-27076 being exploited?
There is no known exploitation of CVE-2021-27076 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Foundation
- CVE-2020-0931 File upload in Microsoft Business Productivity Servers
- CVE-2017-0243 Memory corruption in Microsoft Office 2007 SP2 and SP3, Microsoft Office 2010 SP2, Microsoft Office Web Apps 2010 SP2, and Microsoft Business Productivity Servers 2010 SP2.
- CVE-2020-0795 Cross-site scripting in Microsoft Business Productivity Servers
- CVE-2019-0558 Cross-site scripting in Microsoft Business Productivity Servers
Sources
Also known as GHSA-v4x2-cq4f-rv9r.