Description of the security update for SharePoint Foundation 2013: April 14, 2020

Summary

This security update resolves the following issues:

• A cross-site-scripting (XSS) vulnerability that exists if Microsoft SharePoint Server does not correctly sanitize a specially crafted web request to an affected SharePoint server.
• A remote code execution vulnerability that exists in Microsoft SharePoint if the software fails to check the source markup of an application package.
  To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2020-0923 and Microsoft Common Vulnerabilities and Exposures CVE-2020-0931.

Note To apply this security update, you must have the release version of Service Pack 1 for Microsoft SharePoint Foundation 2013 installed on the computer.

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Method 3: Microsoft Download Center

You can get the standalone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

• Download security update 4484322 for the 64-bit version of SharePoint Foundation 2013

More Information

Security update deployment information

For deployment information about this update, see security update deployment information: April 14, 2020.

Security update replacement information

This security update replaces previously released security update 4484124.

File hash information

File name	SHA1 hash	SHA256 hash
wssloc2013-kb4484322-fullfile-x64-glb.exe	D9326348D33D45CE5C6A5536E9EF3AB394917EBB	8398590424A1F23F8ED0782A7B47C438812B1CA1F9D4A9883C35A529E52CDAC7

File informationDownload the list of files that are included in security update 4484322.

Information about protection and security

Protect yourself online: Windows Security supportLearn how we guard against cyber threats: Microsoft Security