PoC-for-Next.js-Middleware

PoC for Next.js Middleware Bypass CVE-2025-29927 This is a proof-of-concept for a fictional Next.js middleware bypass vulnerability CVE-2025-29927. Use only for educational and authorized security research. 🚀 Features Feature| Description ---|--- ✨ Color & Verbose| Color-coded output; -v for...

CVE-2025-29927

Next.js Vulnerability Demo CVE-2025-29927 This repository contains a demonstration of the Next.js vulnerability CVE-2025-29927, which affects Next.js version 15.2.2 and earlier. The vulnerability allows attackers to bypass middleware authentication checks by setting an x-middleware-subrequest...

NextSecureScan

NextSecureScan - Next.js-CVE-2025-29927 Middleware Vulnerability Scanner NextSecureScan is a comprehensive security scanner specifically designed to identify middleware-related authorization bypass vulnerabilities CVE-2025-29927 in Next.js applications. This scanner leverages explicit header...

CVE-2025-29927

CVE-2025-29927 CVE-2025-29927: Next.js Middleware Bypass Vulnerability This repository demonstrates the CVE-2025-29927 vulnerability in Next.js where the internal header x-middleware-subrequest can be used to bypass middleware checks like authentication. Affected Versions Next.js 15.x 15.2.3...

CVE-2025-29927

CVE-2025-29927: The Next.js Middleware Nightmare This repository is provided strictly for educational purposes only. I did not discover this vulnerability - this is a demonstration and explanation of a publicly disclosed security issue. Using this knowledge to exploit vulnerable systems without...

POC-CVE-2025-29927-

Affected Next.js 15.x 15.2.3, 14.x 14.2.25, Next.js 13.x 13.5.9 Self-hosted setups that use Middleware for critical functionality, such as authentication. Guide npm run dev curl --compressed -X GET http://localhost:3000/dashboard \ -H "Host: localhost:3000" \ -H "sec-ch-ua: "Chromium";v="135",...

NextSploit

🔍 NextSploit: Next.js CVE-2025-29927 Scanner & Exploiter ⚠️ NextSploit is a command-line tool designed to detect and exploit CVE-2025-29927 , a security flaw in Next.js. The tool first identifies if a target website is running Next.js and determines whether its version falls within the vulnerable...

cve-2025-29927

CVE-2025-29927 CVE-2025-29927 Vulnerability All versions of Next.js from 11.1.4 through 13.5.6, 14.x before 14.2.25, and 15.x before 15.2.3 are affected by this vulnerability. The impact is particularly significant for applications that rely on middleware for implementing access controls, as...

0xMiddleware

CVE-2025-29927: Next.js Middleware Exploit This tool demonstrates and automates the exploitation of CVE-2025-29927 , a vulnerability in Next.js that allows an attacker to bypass middleware checks like authentication by abusing the internal header x-middleware-subrequest. 🔧 How the Exploit Works...

CVE-2025-29927

CVE-2025-29927 - Demo for Introdcution to Secure Programming 00960267 Background This is a demo of CVE-2025-29927, a critical vulnerability in Next.js that allowed bypassing the middleware with a certain header. The header x-middleware-subrequest was intended to prevent infinite middleware loops...

CVE-2026-41452-poc

CVE-2026-41452: Krayin CRM Admin Account Takeover via Middleware Bypass A Proof of Concept PoC demonstrating a critical missing authentication vulnerability CVE-2026-41452 affecting Krayin CRM version 2.2.4 and earlier. This flaw allows unauthenticated remote attackers to bypass the application's...

CVE-2025-29927

Next.js CVE-2025-29927 This repository contains a proof of concept for CVE-2025-29927 vulnerability in Next.js, where the internal header x-middleware-subrequest can be exploited to bypass middleware checks such as authentication. Affected Versions Next.js 15.x 🧪 This project was tested with...

Next.js-Middleware-Bypass-CVE-2025-29927-

overview after reading write up of @zhero in his personal blogpost i decide to build this CTF to learn how things work and after that i decide to share it with anybody who wants to learn how exploit this vulnerability so Big shout out to zhero & inzo and you can find their blogpost here :...

CVE-2025-29927

Next.js Middleware Bypass Checker | CVE-2025-29927 Automated Bash tool to detect Next.js applications vulnerable to the middleware bypass CVE-2025-29927 , based on research by Zhero Web Security. Requirements bash whatweb curl Install them on Debian/Ubuntu with: sudo apt install whatweb curl Usag...

CVE-2025-29927-Nextjs-Bypass-PoC

PoC: CVE-2025-29927 - Next.js Middleware Bypass This repository contains a Proof of Concept PoC demonstrating how to bypass middleware security checks in Next.js v13.5.6 by exploiting a vulnerability related to internal HTTP headers. Vulnerability Overview: CVE-2025-29927 What is it? CVE-2025-299...

Vuln-Next.js-CVE-2025-29927

npx [email protected] Install packages npm install -D @types/bcrypt npm install mysql2 npm install jose npm install -D @types/jsonwebtoken Prepare DB CREATE TABLE users id INT PRIMARY KEY AUTOINCREMENT, username VARCHAR255 UNIQUE NOT NULL, password VARCHAR255 NOT NULL ; Run npm run dev...

Next.Js-middleware-bypass-vulnerability-CVE-2025-29927

A basic proof of concept of the CVE-2025-29927 vulnerability that allows to bypass the middleware scripts. Details: Read Here This uses Next.js version 15.2.2. The vulnerability allows the user to bypass the middleware script which contains the verification and can access the admin page without...

NextJS_CVE-2025-29927

Next.js Authorization Bypass Demo This application demonstrates the x-middleware-subrequest vulnerability in Next.js 13.4.19, which allows bypassing middleware protection. Setup 1. Install dependencies: npm install 2. Start the development server: npm run dev Vulnerability Demonstration The...

test-cve-2025-29927

Test app to exploit CVE-2025-29927 The NextJS app has cookie based authentification and a middleware to prevent unauthorized access to /admin page. To start the app run yarn then yarn dev To get unauthorized access to /admin page by using CVE-2025-29927 vulnerability run a proxy-server which adds...

next-attack

This is a Next.js project bootstrapped with create-next-app. Testing the vulnerability First, you can confirm that the middleware works and should redirect the user: curl http://localhost:3000/api/admin Then, you can show how the middleware is being bypassed with the followign command: curl -H...