CVE-2025-49144-PoC

CVE-2025-49144 I write a blog about this vulnerability here: https://havertz2110.github.io/posts/cve-reproduce-cve-2025-49144-notepad++/...

CVE-2025-56383

Vulnerability Attack Type: DLL Hijacking DLL Hijacking Target Application: Notepad++ Method: The NppExport.dll file is loaded by Notepad++ from the working directory Implementation The malicious DLL contains: Exported functions of the original library to ensure compatibility Reverse shell...

CVE-2023-6401

CVE-2023-6401 · DLL Hijacking Proof-of-Concept English | 中文 中文 ⚠️ 重要聲明：僅供安全研究和教育目的使用 NotePad++ ≤ 8.1 DLL劫持漏洞的概念驗證。通過在應用程式目錄放置惡意 dbghelp.dll 來執行任意程式碼。 快速開始 下載專案 git clone https://github.com/mekitoci/CVE-2023-6401.git 進入專案目錄 cd CVE-2023-6401-main 編譯DLL gcc -shared -o dbghelp.dll dbghelp.c -Wall...

CVE-2023-40031

CVE-2023-40031 Analysis and Reproduction of notepad++ Heap Buffer Overflow Vulnerability CVE-2023-40031 Vulnerability Overview Notepad++ is a well-known open-source code editor that runs on Windows and supports multiple programming languages. Recently, security researchers examined Notepad++ and...

forensicscanner

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CVE-2025-56383-Proof-of-Concept

Notepad++ v8.8.3 has a DLL hijacking vulnerability, which can replace the original DLL file to execute malicious code. The example method is as follows: Please note that the following demonstration uses npp.8.8.3.Installer.x64.exe to install Notepad++for testing, but in reality, any installed...

CVE-2026-52885

TOCTOU: HMAC Checks Disk, Executes from Memory Notepad++ v8.9.6.2 — Attacker-Controlled UserCommand Execution via HMAC Race Condition Advisory | ---|--- GHSA| GHSA-qm4c-qg8p-qfcr CVE| CVE-2026-52885 Severity| High Affected| v8.9.6.2 Patched| v8.9.6.4 Patch Commit| 4f7563c Affected File|...

CVE-2026-20841

CVE-2026-20841 - Windows Notepad Remote Code Execution RCE Security Research & Technical Analysis Repository ⚠️ This repository is intended for educational, defensive, and research purposes only. 📖 Overview CVE-2026-20841 is a critical Remote Code Execution RCE vulnerability affecting Microsoft...

notepad-v8.8.1-LPE-CVE-

notepad-v8.8.1-LPE-CVE- CVE-2025-49144 Notepad++ v8.8.1 SYSTEM-level POC 📌 CVE-2025-49144 is a high-severity local privilege escalation vulnerability found in the Notepad++ v8.8.1 and prior version installers. This vulnerability stems from uncontrolled executable search path behavior during...

CVE-2025-49144_PoC

CVE-2025-49144PoC 📌 CVE-2025-49144 is a high-severity local privilege escalation vulnerability found in the Notepad++ v8.8.1 and prior version installers. This vulnerability stems from uncontrolled executable search path behavior during installation, allowing a local attacker to gain SYSTEM-level...

CVE-2025-15556-Notepad-WinGUp-Updater-RCE

Affected Software: Notepad++ versions prior to 8.8.9 using the WinGUp updater. Vulnerability Type: Update integrity verification bypass leading to arbitrary code execution. Description: The WinGUp updater fails to properly verify the integrity of update metadata, allowing an attacker who can...

CVE-2026-20841

CVE-2026-20841 - Windows Notepad RCE PoC for a remote code execution flaw in Windows Notepad's markdown renderer. The markdown engine does not restrict URL protocols, allowing arbitrary protocol handlers to be triggered via clickable links. Disclaimers 1. Not my discovery. Credit goes to the...

CVE-2026-20841

CVE-2026-20841 PoC PoC of the "Windows Notepad RCE" vulnerability. Disclaimers 1. I am NOT the one who discovered this vulnerability. Props to the original authors listed on the official disclosure page. I just recreated the PoC according to the description. 2. I personally don't think this...

CVE-2026-3008

CVE-2026-3008 — Notepad++ 8.9.3 Format String Injection via nativeLang.xml Vulnerability When a search operation produces results, sub1400916C0 formats a hit count label by retrieving a localized string from nativeLang.xml and passing it directly as the format string to wsprintfW: sub140099E60v37...

CVE-2025-49144

Notepad++ Binary Planting PoC CVE-2025-49144 ⚠️ EDUCATIONAL PURPOSE ONLY This code is designed for educational and research purposes to understand binary planting vulnerabilities. Use only in controlled environments with proper authorization. 📋 Overview This Proof of Concept demonstrates the binar...

Notepad-8.9.6-PoC

Notepad++ PoCs CVE-2026-48770 / CVE-2026-48778 / CVE-2026-48800 Proof-of-concept scripts for three vulnerabilities in Notepad++ = 8.9.6, patched in v8.9.6.1 2026-05-26. Vulnerabilities CVE| Type| CVSS| Impact ---|---|---|--- CVE-2026-48770| OOB Read via WMCOPYDATA| 5.0| DoS / Crash CVE-2026-48778...

CVE-2026-20841

CVE-2026-20841 - Windows Notepad RCE PoC for a remote code execution flaw in Windows Notepad's markdown renderer. The markdown engine does not restrict URL protocols, allowing arbitrary protocol handlers to be triggered via clickable links. Disclaimers 1. Not my discovery. Credit goes to the...

notepad_CVE_2026_20841

This repository does not have a README...

Notepad-8.8.1_CVE-2025-49144

CVE-2025-49144 – Exploit for Notepad++ 8.8.1 This repository contains a functional Proof of Concept PoC that exploits the CVE-2025-49144 vulnerability in the Notepad++ 8.8.1 installer. The malicious execution occurs by placing a binary regsvr32.exe in the same directory as the vulnerable installe...

CVE-2026-48800-PoC

CVE-2026-48800 — Notepad++ Arbitrary Code Execution PoC Severity: High | Affected: Notepad++ ≤ 8.9.6 | Patched: v8.9.6.1 A PoC script for CVE-2026-48800, an arbitrary code execution vulnerability in Notepad++ ≤ 8.9.6 via shortcuts.xml. For full technical details, see the official security advisor...