opera -- multiple vulnerabilities

Opera reports:

Certain constructs are not escaped correctly by Opera’s
History Search results. These can be used to inject scripts
into the page, which can then be used to look through the user’s
browsing history, including the contents of the pages they have
visited. These may contain sensitive information.

If a link that uses a JavaScript URL triggers Opera’s Fast
Forward feature, when the user activates Fast Forward, the
script should run on the current page. When a page is held in a
frame, the script is incorrectly executed on the outermost page,
not the page where the URL was located. This can be used to
execute scripts in the context of an unrelated frame, which
allows cross-site scripting.

When Opera is previewing a news feed, some scripts are not
correctly blocked. These scripts are able to subscribe the user
to any feed URL that the attacker chooses, and can also view
the contents of any feeds that the user is subscribed to.
These may contain sensitive information.