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Welcome, fellow hacker! 🚀 If you’ve ever chased bounties or simply explored the world of web security, you’ve likely crossed paths with Cross-Site Scripting (XSS). But what if I told you that most researchers miss the juiciest XSS bugs because they’re stuck looking in all the obvious places?
In this post, we’re going off the beaten path. Let’s explore unusual locations where XSS vulnerabilities hide — and learn the tools, techniques, and mindset needed to uncover them. 🧠
Before we dive deep, let’s quickly recap:
Cross-Site Scripting (XSS) is a vulnerability that allows an attacker to inject malicious JavaScript into a web application. When another user loads the affected page, the script executes in their browser.
Types:
- Stored XSS: Script is permanently stored on the server (e.g., in a database).
- Reflected XSS: Script is reflected off the server (e.g., in an error message or search result).
- DOM-based XSS: The script is injected into the page via client-side JavaScript.
But you knew that, right? 😉 Let’s level up.