Secure Cyber Vulnerability Management

26/07/2025
Zero-Day Initiative

ZDI-25-652: (Pwn2Own) Microsoft SharePoint ToolPane Authentication Bypass Vulnerability

by Deepanshu Jha
This vulnerability allows remote attackers to bypass authentication on affected installations of Microsoft SharePoint. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.5. The following CVEs are assigned: CVE-2025-53771.

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