[Guest Diary] Hunting for SharePoint In-Memory ToolShell Payloads
[This is a Guest Diary by James Woodworth, an ISC intern as part of the SANS.edu Bachelor’s Degree in Applied Cybersecurity (BACS) program [1]. In July 2025, many of us were introduced to the Microsoft SharePoint exploit chain known as ToolShell. ToolShell exploits the deserialization and authentication bypass vulnerabilities, CVE-2025-53770 [2] and CVE-2025-53771 [3], in…


