HackerOne: Interstitial redirect bypass / open redirect in https://hackerone.com/zendesk_session

Hi guys , I have found a way to use the open redirect vulnerability that zendesk refused to fix and we discussed it in 101146 to bypass intristial redirect. in 101146 , @bencode said : I tend to agree with Zendesk, we don't really see any security issues with it. We use our interstitial to warn t...