The AutoFill feature in Apple Safari before 5.0.1 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.1 on Mac OS X 10.4, allows remote attackers to obtain sensitive Address Book Card information via JavaScript code that forces keystroke events for input fields.

WebKit in Apple Safari before 5.0.1 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.1 on Mac OS X 10.4; and webkitgtk before 1.2.6; does not properly handle dynamic modification of a text node, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document.

Apple Safari 4.0.5 on Windows sends the "Authorization: Basic" header appropriate for one web site to a different web site named in a Location header received from the first site, which allows remote web servers to obtain sensitive information by logging HTTP requests. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Use-after-free vulnerability in Apple Safari 4.0.5 on Windows allows remote attackers to execute arbitrary code by using window.open to create a popup window for a crafted HTML document, and then calling the parent window's close method, which triggers improper handling of a deleted window object.

JavaScriptCore.dll, as used in Apple Safari 4.0.5 on Windows XP SP3, allows remote attackers to cause a denial of service (application crash) via an HTML document composed of many successive occurrences of the <object> substring.