Even more fun, when they "blocked scripts" they only removed "<scr1pt>" in a single pass, so I injected "<scr<scr1pt>ipt>" and chaos ensued.
Then they switched to ColdFusion's native XSS protection, so I used "<body onload.." and yay more XSS.
Good times. Now I'm a PM.
@Beerdini don't say it a third time or it will come back!