Microsoft SharePoint Server Elevation of Privilege Vulnerability
CVE-2023-21717

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sharepoint Enterprise Server 2016
Microsoft Sharepoint Enterprise Server 2013 Service Pack 1
Microsoft Sharepoint Server 2019
Microsoft Sharepoint Server Subscription Edition
Vendor
CVE Published:
14 February 2023

What is CVE-2023-21717?

An elevation of privilege vulnerability exists in Microsoft SharePoint Server, allowing attackers to gain higher permissions than intended. This can lead to unauthorized access and manipulation of sensitive data within the SharePoint environment. It is critical for organizations using SharePoint Server to apply the necessary updates and mitigate potential risks.

Affected Version(s)

Microsoft SharePoint Enterprise Server 2013 Service Pack 1 x64-based Systems 15.0.0 < 15.0.5529.1000

Microsoft SharePoint Enterprise Server 2016 x64-based Systems 16.0.0 < 16.0.5383.1000

Microsoft SharePoint Foundation 2013 Service Pack 1 x64-based Systems 15.0.0 < 15.0.5529.1000

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

EPSS Score

9% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.