If the challenge is a "White Box" (source code provided), we look for common vulnerabilities in the chat logic:
The provided file is a . After downloading, the first step is to check its contents without fully extracting to see the file structure. Command: unrar l codem-chat.rar codem-chat.rar
Check for API keys or database passwords in config.js or .env . If the challenge is a "White Box" (source