# 1021: Halloween Has Taken Over

| Name                                                                      | Authors                                    | Category |
| ------------------------------------------------------------------------- | ------------------------------------------ | -------- |
| [Intigriti October Challenge (2021)](https://challenge-1021.intigriti.io) | [Tib3rius](https://twitter.com/0xTib3rius) | XSS, CSP |

## Video Walkthrough

[![Browser, what are you doing?! Solution to October '21 XSS Challenge](https://img.youtube.com/vi/Gk9a77ogn6k/0.jpg)](https://www.youtube.com/watch?v=Gk9a77ogn6k)

## Challenge Description

> Find a way to execute arbitrary javascript on the challenge page and win Intigriti swag.

## Useful Resources

* [XSS cheatsheet](https://portswigger.net/web-security/cross-site-scripting/cheat-sheet)
* [CSP evaluator](https://csp-evaluator.withgoogle.com)

## Community Writeups

1. [svennergr](https://svennergr.github.io/writeups/inti/1021)
2. [jorenverheyen](https://jorenverheyen.github.io/intigriti-october-2021.html)
3. [isira\_adithya](https://blog.isiraadithya.com/intigriti-1021-xss-challenge-solution-writeup)
4. [therealbrenu](https://dev.to/therealbrenu/intigriti-1021-xss-challenge-writeup-253m)
5. [kza](https://klefz.se/2021/10/27/intigritis-october-xss-challenge-2021-write-up)
6. [jorianwoltjer](https://jorianwoltjer.com/blog/p/24)
7. [goku-kaioken](https://github.com/goku-KaioKen/intigriti/blob/main/challenge-writeups/Challenge-1021.pdf)
8. [jorge\_ctf](https://gist.github.com/jorgectf/66e6a9c3b07d09405d944ebc3b810395)
9. [mr\_homer](https://medium.com/@carlos.villa.vs/intigriti-october-xss-challenge-explained-d567b92e48f0)
10. [huli](https://hackmd.io/31uFR5x7T0Ws0MBdhPW-Kg?view)
11. [drleek](https://medium.com/@pr0fessor/intigritis-october-challenge-writeup-8445e864e245)
12. [fernale](https://fernale.blogspot.com/2021/11/intigriti-xss-challenge-10-21.html)