CVE-2023-29357
9.8CRITICALMicrosoft SharePoint Server Elevation of Privilege Vulnerability
Published: 6/14/2023Updated: 10/28/2025
CISA Known Exploited Vulnerability
Microsoft SharePoint Server contains an unspecified vulnerability that allows an unauthenticated attacker, who has gained access to spoofed JWT authentication tokens, to use them for executing a network attack. This attack bypasses authentication, enabling the attacker to gain administrator privileges.
Required Action:
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due Date:
2024-01-31
Known Ransomware Use
Description
Microsoft SharePoint Server Elevation of Privilege Vulnerability
AI AnalysisPowered by AI
Affected Products
microsoftsharepoint_server
2019
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357PatchVendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357PatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-29357US Government Resource