THM: Hollow Shell

Web challenge exploiting a ZIP-based asset upload through magic-byte forgery and a Zip Slip path traversal to plant a malicious Gunicorn hook.

August 12, 2026 · 5 min

THM: Hammer

Web application challenge chaining OTP brute forcing, a rate-limit bypass, JWT key manipulation, and remote command execution.

July 29, 2026 · 7 min

Lakera: Gandalf Password Reveal

A walkthrough of Lakera’s Gandalf Password Reveal levels, covering prompt injection, output transformation, incremental disclosure, and semantic side-channel techniques.

July 14, 2026 · 6 min

HTB: Jarvis

Linux machine chaining manual union-based SQL injection into a phpMyAdmin web shell, a Python command injection, and SUID systemctl abuse for root.

November 27, 2025 · 8 min