creator Intigriti's April XSS challenge
By @aszx87410

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

Rules:
  • This challenge runs from the 18th of April until the 24th of April, 11:59 PM CET.
  • Out of all correct submissions, we will draw six winners on Monday, the 25th of April:
    • Three randomly drawn correct submissions
    • Three best write-ups
  • Every winner gets a €50 swag voucher for our swag shop
  • The winners will be announced on our Twitter profile.
  • For every 100 likes, we'll add a tip to announcement tweet.
  • Join our Discord to discuss the challenge!
The solution...
  • Should work on the latest version of Chrome and FireFox.
  • Should execute alert(document.domain).
  • Should leverage a cross site scripting vulnerability on this domain.
  • Shouldn't be self-XSS or related to MiTM attacks.
  • Should not require any kind of user interaction. There should be a URL that when visited will present the victim with a popup
  • Should be reported at go.intigriti.com/submit-solution.
Test your payloads down below and on the challenge page here!

Let's pop that alert!