CVE-2020-16952: microsoft microsoft sharepoint enterprise server 2016 Origin Validation Error

Vulnerability summary

CVE-2020-16952 is a high (CVSS 8.6) Origin Validation Error vulnerability in microsoft microsoft sharepoint enterprise server 2016. EPSS estimates a 71.09% chance of exploitation in the next 30 days, higher than 99.4% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 16-10-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

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-346Origin Validation ErrorThe product does not properly verify that the source of data or communication is valid.