The Safari 5 and 4.1 for Tiger updates released yesterday together address at least 48 security vulnerabilities, according to Apple data. The large number of fixes is mostly attributable to work on WebKit, the rendering engine at the core of the browser. Some of the most critical issues remedied in this area include ones with HTML buttons and attribute manipulation, which could allow for hacking. A problem with keyboard focus could previously be used to trick people into triggering an unintended action, such as payment.
