Description
It was discovered that a malicious website could inject arbitrary
scripts into a target site by loading it into a frame and navigating
back to a previous Javascript URL that contained an eval() call. This
could be used to steal cookies or other confidential data from the
target site. If the target site is allowed to raise the install
confirmation dialog in Firefox then this flaw even allowed the
malicious site to execute arbitrary code with the privileges of the
Firefox user. By default only the Mozilla Update site is allowed to
attempt software installation; however, users can permit this for
additional sites. (MFSA 2005-42)