Description
A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.
Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint.
The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.
Published: 2020-05-21
Score: 8.8 High
EPSS: 15.1% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 19 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
Description A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1023, CVE-2020-1024. A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account. Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint. The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.
Title Microsoft SharePoint Remote Code Execution Vulnerability
First Time appeared Microsoft sharepoint Server 2016
Microsoft sharepoint Server 2019
CPEs cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*
Vendors & Products Microsoft sharepoint Server 2016
Microsoft sharepoint Server 2019
References

Subscriptions

Microsoft Sharepoint Enterprise Server Sharepoint Server Sharepoint Server 2016 Sharepoint Server 2019
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-19T16:34:01.413Z

Reserved: 2019-11-04T00:00:00.000Z

Link: CVE-2020-1102

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-05-21T23:15:14.400

Modified: 2026-06-17T03:00:28.187

Link: CVE-2020-1102

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses