Man-in-the-middle attack is an attack technique that a third party intercepts the communication between two parties for the purpose of eavesdropping on and tampering with the communication.
No
A successful attack that requires the man-in-the-middle attack is not identified as a vulnerability.
This case is not handled as a vulnerability for the Bug Bounty Program.
However, if we determine that the risk is high (example: RCE), we may identify this case as a vulnerability.