On announcements said that all versions of Adobe Flash are affected by an exploit. This information was updated later: Only old versions are affected. The current version 9.0.124.0 is OK (for now).

So, now it's 2008-06-07 and I checked 4 sites on Google Analytics. Only the last week from 2008-05-30 to 2008-06-06:

Site9.0.124.09.0.115.0
A34.48%40.23%
B45.16%25.81%
C41.89%33.78%
D23.08%31.79%


Site B and C are two blogs that mentioned the urgency of updating the Flash plugin. Site A is a simple service. Site D the site of a media company for print, web, etc.
You can do the math to see that there are a lot of people using even older versions of Flash, that have even more security vulnerabilities. The table just shows the last two versions.

I have to repeat the question from the title:

ARE YOU MAD??

There is no safe place on the web. Every corner of the WWW can be the host of evil code. Harmless websites could include uncontrolled ads from unknown sources. A comment could exploit some bugs on a blog or similar page (MySpace, Facebook, ...) to hide code to include remote Flash files.

Check your version of Adobe Flash and update if necessary! NOW!