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; allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a use element in an SVG document.

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; accesses uninitialized memory during processing of the (1) :first-letter and (2) :first-line pseudo-elements in an SVG text element, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted document.

The counters functionality in the Cascading Style Sheets (CSS) implementation in 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; allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document.

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.

The Cascading Style Sheets (CSS) implementation in WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1 on Mac OS X 10.4, does not properly handle the :visited pseudo-class, which allows remote attackers to obtain sensitive information about visited web pages via a crafted HTML document.

Use-after-free vulnerability in WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1 on Mac OS X 10.4, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving HTML document subtrees.

The execCommand JavaScript function in WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1 on Mac OS X 10.4, does not properly restrict remote execution of clipboard commands, which allows remote attackers to modify the clipboard via a crafted HTML document.

Cross-site scripting (XSS) vulnerability in WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1 on Mac OS X 10.4, allows remote attackers to inject arbitrary web script or HTML via a FRAME element with a SRC attribute composed of a javascript: sequence preceded by spaces.

WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1 on Mac OS X 10.4, accesses out-of-bounds memory during processing of HTML tables, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted HTML document.