WebKit in Apple iOS before 7.1.2 and Apple Safari before 6.1.5 and 7.x before 7.0.5 does not properly encode domain names in URLs, which allows remote attackers to spoof the address bar via a crafted web site.
Apple Security Advisory 2014-06-30-3 - iOS 7.1.2 is now available and addresses application termination, code execution, bypass, and various other vulnerabilities.