Website exposing "env" hidden parameter through web forms.

Hi everyone,There is a website in which it exposes an "env" hidden parameter through web form whenever I try to access a non-existing page (404).I just want to know what can I do with this info, I just want to have some ideas.Here is a link of an image of the parameter:https://ift.tt/HtvTR4u!!! by HowToHack on Reddit.com Website exposing "env" hidden parameter through web forms. - Hi everyone,There is a website in which it exposes an "env" hidden parameter through web form whenever I try to access a non-existing page (404).I just want to know what can I do with this info, I just want to have some ideas.Here is a link of an image of the parameter:https://ift.tt/HtvTR4u!!! buy funny gadgets: https://ebay.us/5MCoAl