metronome

hmmm

first of all, there's no javascript "engine" on most websites. and every major vendor of SQL databases has it's own, so good luck in finding a vulnerability that works with MSSQL/Oracle/Mysql/Postgresql.

also, even if you manage to store a .js file in a temp directory (which would be handled by the web server, btw. nothing to do with sql/js) it's usually a very locked down directory (you can't even execute from /tmp by default in most GNU/Linux servers)

even so, you would still need to execute that .js file (and how? most servers can't run javascript)

I'm not saying this tool doesn't exist, but I'm pretty sure that's not how it works

businesses that advertise on facebook are pretty much forced into using more than one account as well

"When a site is brought down, it is often vulnerable to further security breaches."

what? I'd say it's just the other way around