CVE-2012-4194 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can execute cross-site scripting attacks in Firefox and Thunderbird by shadowing the location object via plugins.

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
Available

What is CVE-2012-4194?

CVE-2012-4194 is a medium-severity cross-site scripting vulnerability in Canonical Ubuntu Linux, published on 29 Oct 2012. 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

Mozilla Firefox before 16.0.2, Firefox ESR 10.x before 10.0.10, Thunderbird before 16.0.2, Thunderbird ESR 10.x before 10.0.10, and SeaMonkey before 2.13.2 do not prevent use of the valueOf method to shadow the location object (aka window.location), which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via vectors involving a plugin.

Weakness: CWE-79

Which versions are affected by CVE-2012-4194?

It affects 13 products.

Products include Canonical Ubuntu Linux, Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird, Mozilla Thunderbird Esr, Opensuse Opensuse and 7 more.

How do I fix CVE-2012-4194?

Upgrade to a fixed version.

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-2012-4194 being exploited?

There is no known exploitation of CVE-2012-4194 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-wg9j-v9q2-h859.

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