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How I Made $300 in 5 Minutes💰

Abhijeet Kumawat
InfoSec Write-ups
Published in
5 min readMar 5, 2025

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Hello, everyone! 👋

I’m , a passionate security researcher 🕵️‍♂️, and today, I’m excited to share a recent vulnerability. This is the story of how I discovered a vulnerability 🔒in self-hosted website — and earned a $300 bounty in the process.Here’s how it happened.

🧐 What is SSTI?

occurs when an attacker can inject malicious input into a server-side template, causing the server to execute unintended commands. Many web frameworks use templates to dynamically render web pages. If the input fields in these templates are not properly sanitized, attackers can execute arbitrary code, extract sensitive data, or even take control of the server.

Created by Copilot

🕵️‍♂️The Discovery

The Setup

While testing a self-hosted website, I noticed a signup form. Here’s what I did:

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Published in InfoSec Write-ups

A collection of write-ups from the best hackers in the world on topics ranging from bug bounties and CTFs to vulnhub machines, hardware challenges and real life encounters. Subscribe to our weekly newsletter for the coolest infosec updates: https://weekly.infosecwriteups.com/

Written by Abhijeet Kumawat

Radhe Radhe ✨ || Jr. Security Consultant || Security Researcher || Bug Hunter || Web Application Penetration Tester || Ethical Hacker ||

Responses (4)

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What platform?

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That's a great big find. Nice job!

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Way to go!

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