Array ( [Host] => avlidienbrunn.se [Connection] => Keep-Alive [Accept-Encoding] => gzip [CF-IPCountry] => US [X-Forwarded-For] => 54.226.23.160 [CF-RAY] => 4ad23b60582a5a6e-BOS [X-Forwarded-Proto] => https [CF-Visitor] => {"scheme":"https"} [User-Agent] => CCBot/2.0 (https://commoncrawl.org/faq/) [Accept] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 [If-Modified-Since] => Sat, 15 Dec 2018 09:34:04 UTC [CF-Connecting-IP] => 54.226.23.160 [CDN-Loop] => cloudflare )

Goal: Create a link that, when clicked, pops alert(1) in this origin (without using any other php file/older challenges ofc)
Send solution to avlidienbrunn@gmail.com (there are no hidden parameters btw)
Solvers:
  • @filedescriptor
  • @fransrosen
  • @kinugawamasato
  • @SecurityMB
  • @0xSobky
  • @0xmramydnei
  • @abdulahhusam

  • Solved by using bug in challenge (fixed now):
  • @_bayotop