Title: Opera Same Origin Policy Circumvention Vulnerability
Severity: HIGH
Description:
Opera is a popular, freely available web browser that is supported across many different platforms.
Opera is prone to an issue which may allow for the execution of script code across domains, allowing for circumvention of the web browser's security model. It is possible to construct malicious script code on a webpage, which when executed by Opera web browser, is able to affect the properties of another domain.
In short, Opera does not properly implement the "Same Origin Policy" enforced by other browsers. For example, a window is still associated with a domain after making a JavaScript open() call to clear it.
The danger is that one website may be able to access the cookie-based authentication credentials of another website.
Affected Products:
- Opera Software Opera Web Browser 5.0.0 2 win32
- Opera Software Opera Web Browser 5.0.0 Linux
- Opera Software Opera Web Browser 5.1.0 0 win32
- Opera Software Opera Web Browser 5.1.0 1 win32
- Opera Software Opera Web Browser 5.12.0 win32
References:
- Opera Software: Opera Web Browser Home Page
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