Master Node.js security and secure coding best practices through analyzing and exploiting real-world vulnerable npm packages. Master Node.js security through hands-on learning and best practices. Learn secure coding conventions in Node.js by executing command injection attacks on real-world npm packages and analyzing vulnerable code. The book features 33 self-assessment yes-no, fill-the-blank, and multiple answer questions to help you evaluate and test your knowledge of Node.js secure coding. You'll analyze the code of 6 vulnerable npm packages found vulnerable via CVE reports to learn best practices on command injection vulnerabilities. With 6 additional references to vulnerable npm packages, you'll strengthen your skills in secure coding. This book takes an adventure-based approach to application security learning, where you will be playing detective who unravels the mysteries of common security vulnerabilities. Through these exercises you will learn about secure coding practices, and how to avoid security pitfalls that software developers and open-source maintainers get caught with. Senior software engineers often recite how one of the most critical skills you should have as an engineer is the ability to read code. The more you read, the easier it becomes for you to understand code and the more context you gain. This book focuses exactly on that - reading vulnerable code, so we can learn from it.