CVE-2009-3266 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can execute cross-site scripting and cross-zone scripting attacks in Opera browser via crafted RSS or Atom feeds.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2009-3266?

CVE-2009-3266 is a medium-severity cross-site scripting vulnerability in Opera Opera Browser, published on 18 Sep 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows remote attackers to conduct cross-site scripting (XSS) attacks, and conduct cross-zone scripting attacks involving the Feed Subscription Page to read feeds or create feed subscriptions, via a crafted feed, related to the rendering of the application/rss+xml content type as "scripted content."

Weakness: CWE-79

Which versions are affected by CVE-2009-3266?

It affects 1 product.

Products include Opera Opera Browser.

How do I fix CVE-2009-3266?

No fix has been published for CVE-2009-3266 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2009-3266 being exploited?

There is no known exploitation of CVE-2009-3266 in the wild and no public exploit code.

All Opera Opera Browser vulnerabilities

Sources

Also known as GHSA-9f37-2v5p-xv7g.

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