Hi,
I would need accessing cifs/smb shares mounted within dolphin from the terminal (or any other applications).

How can I find the mountpoint .?
Regards,
S.Ancelot

That's not really possible, as it is not an actual mountpoint, but a transparency layer called KIO which presents some kind of virtual file system to applications using it. To a certain degree, you can use it using the "kioclient" CLI application, but it's relatively limited.

The only thing I found was smb4k, that provides access to mountpoints. Unfortunately this tool is not dedicated for "standard" users.