---
id: 5009
title: "YesWeHack & Alibaba Security Meetup challenge solution"
source_domain: yeswehack.com
source_url: "https://www.yeswehack.com/community/yeswehack-alibaba-hackinggame-writeup"
published_at: "2019-06-25T14:08:00Z"
tags: ["browser-security", "ctf", "web-security", "xss", "writeup", "alibaba"]
phying_url: "https://phying.com/item/5009"
lang: en
---

# YesWeHack & Alibaba Security Meetup challenge solution

## Summary

A step-by-step solution to the XSS challenge from the YesWeHack and Alibaba Security Meetup: three levels of increasing difficulty, from a debug-parameter leak to escaping bypasses, on Chrome 75.

## Intelligence Metadata

- **Sources:** yeswehack.com
- **Published:** 2019-06-25T14:08:00Z
- **Original:** https://www.yeswehack.com/community/yeswehack-alibaba-hackinggame-writeup
- **Phying News:** https://phying.com/item/5009