If you need precise control, a Python script is often better.
Find the functionality that seems vulnerable. Usually, this involves: race condition hackviser
Use with SELECT FOR UPDATE :
POST /api/redeem HTTP/1.1 Host: hackviser.com Cookie: session=eyJ1c2VyIjoidGVzdGVyIn0= Content-Type: application/json If you need precise control, a Python script is often better
import threading import requests
Hackviser (CTF / Bug Bounty simulation) Vulnerability Type: Time-of-Check to Time-of-Use (TOCTOU) Race Condition Endpoint: /api/redeem (POST) Parameter: coupon_code (single-use) Impact: Unlimited redemption of the same one-time coupon. If you need precise control