Opera has released version 9.62 of the Opera Browser that fixes two security areas:

Fixed an issue where History Search could be used to execute arbitrary code: for details see http://www.opera.com/support/search/view/906/

The links panel no longer allows cross-site scripting: for details see
http://www.opera.com/support/search/view/907/

The latest version can be obtained from:
http://www.opera.com/download/