Ah yes, leave it to the porn industry to locate the quickest way to an exploit.

Microsoft has issued warnings about a serious flaw in Internet Explorer that allows attackers to hijack a PC via the popular browser.
Security firm Sunbelt Software said the vulnerability was being actively exploited on some porn websites.
So far there is no fix to close the bug in the browsing program but Microsoft has issued advice about how to avoid falling victim.
It said it would patch the bug in its next security update due on 10 October.
Researcher Adam Thomas uncovered the exploit which revolves around the way that the Internet Explorer browser handles a particular form of graphics known as vector graphics.
A properly crafted webpage can exploit this problem and install almost anything they want on the target machine…. Source: BBC