CVE-2023-29357

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. Vendor/Product: Microsoft SharePoint Server. Added to CISA KEV 2024-01-10; required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.