Blogs

My write-ups and stuff I think are interesting

  • From Coins to Chaos : Business Logic Exploits in LeetCode

    While most people use LeetCode to sharpen their problem-solving skills, I took a different route—digging into its logic. In this blog, I’ll walk you through how I found and responsibly reported three impactful business logic vulnerabilities in LeetCode’s main application - leetcode.com. Each case involved clever misuse of logic, and none required complex technical exploits. Just pure understanding of...