What is Prototype Pollution Vulnerability

JavaScript programming language is one of the essential tools in modern web applications. With advancing technology, JavaScript has also become prevalent in backend programming, apart from its frontend use. In this article, I will try to explain the “Prototype Pollution” vulnerability that may occur in web applications coded with JavaScript. This vulnerability can arise in Node.js and JavaScript pentest studies.

Before trying to understand what the “Prototype Pollution” vulnerability is, it is useful to understand the relationship between JavaScript programming …

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