XML injection in Microsoft products - CVE-2020-1147
Published: July 14, 2020 / Updated: February 20, 2022
Vulnerability identifier: #VU29836
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2020-1147
CWE-ID: CWE-91
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Microsoft SharePoint Server
Visual Studio
ASP.NET Core MVC
Microsoft .NET Core
Microsoft .NET Framework
Microsoft SharePoint Server
Visual Studio
ASP.NET Core MVC
Microsoft .NET Core
Microsoft .NET Framework
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation when processing XML data in .NET Framework, Microsoft SharePoint, and Visual Studio. A remote unauthenticated attacker can pass specially crafted XML data to the application and execute arbitrary code on the system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2020-1147
Install updates from vendor's website.