Open Redirect on https://go.bitwala.com/

How it was found

Hello I found open redirect bug on https://go.bitwala.com. I know that domain is not in scope.I just want to inform a bug.

Steps To Reproduce:

1. go to https://go.bitwala.com/d4ffbnr?campaign=brand-nov&adgroup=native&creative=link-liquidity%20&fallback=https%3A%2F%2Fwww.bitwala.com%2F%3Futm_source%3Dcryptomonday%26utm_campaign%3Dbrand-nov%26utm_medium%3Dnative%26utm_content%3Dlink-liquidity%20

2. Change the url like thishttps://go.bitwala.com/d4ffbnr?campaign=brand-nov&adgroup=native&creative=link-liquidity%20&fallback=https://www.google.com

3. It will redirect to https://www.google.com

Impact

An attacker can use this vulnerability to redirect other malicious,evil websites . https://cwe.mitre.org/data/definitions/601.html