Intego: Yesterday, Apple quietly released Safari 6.1.3 and Safari 7.0.3 with security updates that address multiple vulnerabilities. These updates patch 27 security bugs altogether, all of which are related to arbitrary code execution.
Safari 6.1.3 and Safari 7.0.3 updates are available for: OS X Lion 10.7.5, OS X Lion Server 10.7.5, OS X Mountain Lion 10.8.5, and OS X Mavericks 10.9.2.