If you use my SyntaxHighlighter Evolved WordPress plugin, please update ASAP. There’s a security issue with the Flash file that is used by version 2 of the highlighting library. This file is meant to be used for allowing one-click copying of the code to your clipboard (since normal copy/paste doesn’t work with it) but the file reportedly suffers from a cross-site scripting security issue.
Even if you use the better version 3 of the library (the default for my plugin), the file from version 2 of the library will still be included in the plugin’s files.
As a temporary fix, I have emptied out the file. This unfortunately means your visitors will not easily be able to copy any code you paste. I recommend switching to the superior version 3 via my plugin’s settings page. Code highlighted using the newer version can be selected and copied normally.
Feel free to leave any questions you have about this security issue on this post but please leave other general SyntaxHighlighter comments on the plugin’s homepage. Thanks.