CVE-2009-2841

The HTMLMediaElement::loadResource function in html/HTMLMediaElement.cpp in
WebCore in WebKit before r49480, as used in Apple Safari before 4.0.4 on
Mac OS X, does not perform the expected callbacks for HTML 5 media elements
that have external URLs for media resources, which allows remote attackers
to trigger sub-resource requests to arbitrary web sites via a crafted HTML
document, as demonstrated by an HTML e-mail message that uses a media
element for X-Confirm-Reading-To functionality, aka rdar problem 7271202.

Notes