A vulnerability has been discovered in Opera, which can be exploited by malicious web sites to spoof the file extension of downloadable files.

The problem is that Opera can be tricked into opening a file with a different application than indicated by embedding a CLSID in the file name. This can be exploited to trick users into opening "trusted" file types, which are in fact malicious files.

A demonstration of the vulnerability can be found here:
http://secunia.com/Internet_Explorer_File_Download_Extension_Spoofing_Test/

Solution
Update to version 7.50 or later.
Changelog
Further details available in Customer Area

Deep Links
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