---
id: 4951
title: "DOJO CHALLENGE #9 Winners!"
source_domain: yeswehack.com
source_url: "https://www.yeswehack.com/dojo/dojo-challenge-9-winners"
published_at: "2021-04-26T15:38:00Z"
tags: ["bug-bounty", "ctf", "prototype-pollution", "dojo", "ssrf", "write-ups"]
phying_url: "https://phying.com/item/4951"
lang: en
---

# DOJO CHALLENGE #9 Winners!

## Summary

Recap of DOJO Challenge #9: crafting a valid prototype pollution payload to exploit SSRF and retrieve a secret flag. Robin was fastest; four top write-ups are highlighted.

## Intelligence Metadata

- **Sources:** yeswehack.com
- **Published:** 2021-04-26T15:38:00Z
- **Original:** https://www.yeswehack.com/dojo/dojo-challenge-9-winners
- **Phying News:** https://phying.com/item/4951