About
whoami
I’m Sean, a secondary school student from Hong Kong who’s interested in all things programming. I’m part of the CTF team Black Bauhinia, and have done independent security research. Other than infosec, I also enjoy being a hobbyist full stack developer and a competitive programmer.
Research
- CVE-2025-23207 - KaTeX
- CVE-2025-26791 - DOMPurify Writeup
- CVE-2025-27108 - DOM Experssions(SolidJS) Writeup
- CVE-2025-27109 - SolidJS Writeup
Projects
Awards
- Finals & 1st place in heats - HKCERT CTF 2024 Secondary Division
- Silver - Hong Kong Olympiad in Informatics Junior 2024
- 8th Individual - AlpacaHack Round 2 (Web)
- First place - NuttyShell CTF 2024 Secondary Division
- Second place - HKCERT CTF 2023 Secondary Division