This year, I seriously followed Water Paddler to play CTF for a whole year. I saw someone wrote a CTF: Best Web Challenges 2022 and found that I had played most of the challenges inside. So I thought it would be better for me to write a summary, documenting the challenges that I personally felt I had learned something new from.
Because of my personal interest, the challenges that I played were related to frontend and JS. Challenges related to backend (PHP, Java, etc.) are not included.
Also, the techniques or solutions recorded in this article do not represent the first appearance in CTF. They are just the first time I saw them or thought they were worth recording, so I wrote them down.
I divided the challenges into several categories:
- JS-related knowledge
- Node.js related
- Frontend DOM/BOM related knowledge
- Browser internal operation related