This security update resolves a cross-site–scripting (XSS) vulnerability that exists if Microsoft SharePoint Server does not correctly sanitize a specially crafted web request that's made to an affected SharePoint server. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-1031.
Note To apply this security update, you must have the release version of Service Pack 1 for Microsoft SharePoint Server 2013 installed on the computer.
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