Opera Truncated Dialog Box Vulnerability

A vulnerability has been identified in Opera, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an error when displaying a dialog box's buttons within a small window. This can be exploited to download and execute a file by tricking a user into clicking on a misleading button within an underlying page.

Successful exploitation may allow execution of arbitrary code, but may require a certain amount of social engineering.