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Opera Web Browser Multiple Cross Site Scripting Vulnerabilities

Opera Web Browser is prone to multiple cross-site scripting vulnerabilities because it fails to properly sanitize user-supplied input.

An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks.

Versions prior to Opera Web Browser 9.61 are vulnerable.

NOTE: This BID was previously titled 'Opera Web Browser HTML Injection and Cross Site Scripting Vulnerabilities'. The HTML-injection issue has been given its own record (BID 31869) to better document the issue.