Cross site scripting

Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, does not properly escape characters in DOM elements, which makes it easier for remote attackers to bypass cross-site scripting XSS protection mechanisms via a crafted HTML document...

Malicious DLL files can be unintentionally loaded and allowed to run arbitrary code – Opera Security Advisories

Malicious DLL files can be unintentionally loaded and allowed to run arbitrary code – Opera Security Advisories OPCOM Team | September 8, 2010 Severity High Description Opera uses dynamic link libraries DLLs of its own, and several provided by the host operating system or plug-ins. In some cases,...

HTTP Content-Length header can be used to execute arbitrary code – Opera Security Advisories

HTTP Content-Length header can be used to execute arbitrary code – Opera Security Advisories OPCOM Team | March 17, 2010 Affected versions This vulnerability affects Opera for Microsoft Windows. Severity Highly Severe Description Large values in the HTTP Content-Length header can cause Opera to...