Isn there a CGI script to allow users to change their passwords online?
There are several, but the author doesn’t know of any that have been sufficiently well tested to recommend. This is a tricky thing to set up, and a good general script has not yet been made publicly available. Some sites have solved this problem by setting up a second HTTP server for the sole purpose of changing the password file. This server listens on a different port from the primary server, and runs with sufficient permissions so that it can write to the password file (e.g., it runs as user “www”).
