You can also pass the session password by install sshpass on WSL/bash
and set the winscp terminal path to
Don't forget to tick "Remember session password and pass it to PuTTY".
sudo apt-get install sshpass
and set the winscp terminal path to
"C:\Program Files\ConEmu\ConEmu64.exe" -Reuse -run bash.exe -c "sshpass -p !P ssh !U@!@ -p !#" - new_console:t: '!N'
Don't forget to tick "Remember session password and pass it to PuTTY".