Understanding and Preventing Cross-Site Request Forgery (CSRF)

Web application security is critical, yet vulnerabilities like Cross-Site Request Forgery (CSRF) continue to put user sessions and sensitive data at risk. This text-only course guides you through the core concepts of CSRF, from basic web request mechanics to advanced mitigation techniques, enabling you to confidently secure your applications against unauthorized actions. You will learn to identify vulnerable endpoints and implement industry-standard defenses. What you'll learn: Understand the foundational mechanics of a CSRF attack and how browsers handle stateful requests; Identify vulnerable application flows and endpoints through systematic analysis; Implement robust CSRF defenses using anti-CSRF tokens and modern SameSite cookie attributes; Configure secure authentication patterns for Single Page Applications (SPAs) and APIs; Test your applications for CSRF vulnerabilities using manual inspection techniques; Apply security best practices within modern web development frameworks. You will start with essential definitions of web requests, cookies, and session management before exploring real-world attack scenarios and step-by-step defense implementations. This course is designed for beginner web developers, software engineers, and security enthusiasts looking to build a strong foundation in web security without any prior security experience. Start mastering CSRF defense and protect your web applications from unauthorized exploits.