Intigriti's May 2025 XSS Challenge


May 19, 2025


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Belgian ethical hacking platform Intigriti hosted a new XSS (Cross Site Scripting) challenge in May 2025.

  • I uploaded a PDF containing my writeup that can be read below or downloaded here: PDF

The challenge was build aroudn a weak regex bypass, DOM clobbering, a poor origin check and tricking the browser not going into idle state to fast.


Embedded writeup PDF: