Web Security Academy | Lesson 5: Prototype Pollution Explained & Prevention Techniques | Bug Bounty
Welcome back to the DAVE Web Security Series!
In Lesson 5, we dive deep into Prototype Pollution, one of the most important JavaScript security vulnerabilities that can lead to serious impacts such as Privilege Escalation, DOM XSS, and even Remote Code Execution (RCE).
In this lesson, you’ll learn:
✅ What Prototype Pollution is
✅ Server-Side Prototype Pollution (SSPP)
✅ Identifying vulnerable requests
✅ Bypassing input filters
✅ Remote Code Execution via child_process.fork()
✅ Remote Code Execution via child_process.execSync()
✅ Preventing Prototype Pollution Vulnerabilities
✅ Sanitizing Property Keys
✅ Preventing Changes to Prototype Objects
✅ Using Safer Alternatives such as Map() and Set()
This lesson is part of my ongoing Web Security Academy learning journey designed for aspiring Bug Bounty Hunters, Penetration Testers, and Cybersecurity Enthusiasts.
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