NNathanin2025-la-ctf-writeup.hashnode.dev·Feb 15, 2025 · 21 min readLA CTF 2025 Writeuprev javascryption read the javascript. one-liner solution: echo 'JTNEJTNEUWZsSlglNUJPTERfREFUQSU1RG85MWNzeFdZMzlWZXNwbmVwSjMlNUJPTERfREFUQSU1RGY5bWI3JTVCT0xEX0RBVEElNURHZGpGR2I=' | base64 -d | urlencode -d | sed 's/\[OLD_DATA\]/Z/g' | rev | base64 -d...00