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Day 2: Mastering Stored XSS — Essential Tricks & Techniques Based on Personal Experience and Valuable POCs
[ In collaboration with Abhijeet Kumawat ( his LinkedIn | Twitter)]
Hey geeks, it4chis3c here with one more write-up on tricks & tips to detect Stored XSS.
Mastering Stored XSS: Essential Tricks & Techniques
Stored Cross-Site Scripting (Stored XSS), or persistent XSS, is a vulnerability where malicious scripts are permanently stored on a target server, such as in a database, and then executed in the browser of other users who access the infected content. Unlike Reflected XSS, Stored XSS can affect every user who accesses the compromised page, making it a potent attack vector.
1. Where to Look: Key Areas for Stored XSS Testing
To uncover Stored XSS vulnerabilities, it’s essential to know where to look:
- User-Generated Content: Areas where users can submit content, such as comment sections, message boards, profile bio sections, and guest books, are prime targets for Stored XSS attacks. Attackers can inject malicious scripts that get stored and later executed when other users view the content.
- Database Reflections: Inputs that are stored in the backend database and later reflected on different web pages are particularly vulnerable. These could include blog posts, forum messages…
