ZDI-20-694: Microsoft SharePoint Server Web Part Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint Server. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of Web Parts. When creating a SharePoint page, an attacker can upload XML containing an arbitrary Web Part definition. An attacker can leverage this vulnerability to execute code in the context of the service account.

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• source/ZDI
• alias/ZDI-20-694
• alias/ZDI-CAN-10589
• alias/CVE-2020-1181
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• canonical/microsoft sharepoint