I just had a weird situation where I had to use this utility. I moved server last night, and temporarily used the IP address in the settings, with a link from the old forum. No problem, and today the servername had propagated, at least for me, so I changed the the settings to use the URL. Again, no problem, but shortly afterwards, for some weird reason, the name propagation reverted to the old host. Anyway, because I had changed the settings, I was trapped at the index page. Any time I tried to do anything, I was directed to the old forum, because that is where domain name was pointing. So, I used this utility to change the URL back to an IP, but was alarmed to see the warning appear on the forum about the high security vulnerability. It may as well carried a link to the repair settings file with the database password in plain view.
If you are going to have a warning, please place it in the admin area, or make it visable to logged-in admins only. Of course this is a useful tool, but some thought should be given to display of the warning.
Thanks.