Type Confusion in Google Chrome V8

This repository contains a proof-of-concept exploit for CVE-2021-30551, a type confusion vulnerability in the V8 JavaScript engine used by Google Chrome. The repository consists of a README.md with usage instructions and a single exploit file, exp.html. The exploit is implemented in JavaScript and HTML, leveraging advanced techniques such as WebAssembly, out-of-bounds array manipulation, and arbitrary read/write primitives to achieve code execution. The payload is x64 shellcode that spawns a shell, demonstrating arbitrary code execution in the browser process. The exploit is intended to be served via a local web server and accessed by a vulnerable version of Chrome. The code is operational and demonstrates the full exploitation chain, but is not weaponized for mass exploitation. No external network endpoints are hardcoded in the exploit itself, but the README provides example URLs for local testing and version checking.