Live › vulnerability › CVE-2023-29357
Go to dashboardMicrosoft SharePoint Server accepts spoofed JWT authentication tokens, so a network attacker can bypass authentication. The attacker gets administrator privileges on the server.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Microsoft SharePoint Server | vendor | – | – |
| microsoft sharepoint server | vendor | = 2019 | – |
Unknown from the sources.
Apply the Microsoft mitigations for CVE-2023-29357 per vendor instructions, or stop using the affected SharePoint Server if mitigations are unavailable (CISA required action).
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
This page as .md · .json · in your agent: get_signal("CVE-2023-29357")
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