The Introduction of a New Line Character lets the attacker the stack trace at demo.microweber.org/
This Attack becomes more significant because of its Less complication.
The Stack trace discloses following information :
https://demo.microweber.org/demo/api/logout?redirect_to=
https://demo.microweber.org/demo/api/logout?redirect_to=xyz%0d%0axyz
This vulnerability is capable of disclosing sensitive stack trace exposed by the back-end which will let the attacker escalate his/her attack vector.
I Hope you understand this issue and Fix it as soon as possible.
Thank you.