You either have the passwords in the scripts your are running or stored in saved sites.
It the latter, see https://winscp.net/eng/docs/faq_password

WINSCP has been running automated tasks just fine for over a year. In that time we have lost/forgotten the password to a site and the site is moving and we need to set up an account on the site.

Is there a way to recover the password for sites in WINSCP?

thanks
Robert Davidson