[Information Disclosure] on /registerTeam /joinTeam /leaveTeam

[RaxoCoding]

Whenever these endpoints are called, at the end the user object from MongoDB is sent back, without any filtering, so the whole user object is sent back to the user.

FIX : Do not handle sending user or team object back to the frontEnd.

Ref 1 : https://github.com/CTF-Cafe/CTF_Cafe_platform/blob/a1906941c3b9086bd213399812b19c89ab9cf0ab/backEnd/controllers/teamController.js#L9

Ref 2 : https://github.com/CTF-Cafe/CTF_Cafe_platform/blob/a1906941c3b9086bd213399812b19c89ab9cf0ab/backEnd/controllers/teamController.js#L121

Ref 3 : https://github.com/CTF-Cafe/CTF_Cafe_platform/blob/a1906941c3b9086bd213399812b19c89ab9cf0ab/backEnd/controllers/teamController.js#L321

[RaxoCoding]

Fixed : b29992b04b6911c1cd10f53a81c7ac0a3e5bf841