Michael Holzt has discovered a vulnerability in Opera, which can be exploited by malicious people to trick users into executing malicious files.
The vulnerability is caused due to an error in the processing of "data:" URIs, causing wrong information to be shown in a download dialog. This can be exploited by e.g. a malicious website to trick users into executing a malicious file by supplying a specially crafted "data:" URI.
The vulnerability has been confirmed on version 7.54u1 for Windows. Other versions may also be affected.
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Subject: Opera "data:" URI Handler Spoofing Vulnerability
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