CVE-2020-16952

high Microsoft
CVSS v3 Base Score
8.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
EPSS Score
78.6%
Exploitation probability in 30 days
Top 1% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
High
Availability
Low
Published: October 16, 2020 (2036 days ago)
Last Modified: February 23, 2026
Vendor: Microsoft

Description

<p>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.</p> <p>Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint.</p> <p>The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.</p>

CWE

CWE-346

Affected Products

microsoft sharepoint enterprise servermicrosoft sharepoint foundationmicrosoft sharepoint server

References

🔗 packetstormsecurity.com 🔗 portal.msrc.microsoft.com 🔗 packetstormsecurity.com 🔗 portal.msrc.microsoft.com