source: https://www.securityfocus.com/bid/15472/info
A vulnerability has been identified in Opera Web browser that allows an attacker to misrepresent the status bar in the browser, allowing vulnerable users to be mislead into following a link to a malicious site.
This vulnerability would most likely be exploited through HTML e-mail, though other attack vectors exist such as HTML injection attacks in third-party Web applications.
<formaction="[malicious site]"><ahref="www.example.com"><inputtype="image"src="[image]"title="www.example.com"></a></form>