CVE-2013-6674 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can inject arbitrary web script or HTML into email clients via crafted data URLs in IFRAME elements, requiring user interaction to view the message.

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-2013-6674?

CVE-2013-6674 is a medium-severity cross-site scripting vulnerability in Mozilla Seamonkey, published on 17 Feb 2014. 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

Cross-site scripting (XSS) vulnerability in Mozilla Thunderbird 17.x through 17.0.8, Thunderbird ESR 17.x through 17.0.10, and SeaMonkey before 2.20 allows user-assisted remote attackers to inject arbitrary web script or HTML via an e-mail message containing a data: URL in an IFRAME element, a related issue to CVE-2014-2018.

Weakness: CWE-79

Which versions are affected by CVE-2013-6674?

It affects 3 products.

Products include Mozilla Seamonkey, Mozilla Thunderbird, Mozilla Thunderbird Esr.

How do I fix CVE-2013-6674?

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-2013-6674 being exploited?

There is no known exploitation of CVE-2013-6674 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

All Mozilla Seamonkey vulnerabilities

Sources

Also known as GHSA-f33f-rhvc-q7r2.

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