CVE-2010-2768 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can bypass XSS protections in Mozilla browsers via UTF-7 encoding in OBJECT elements, requiring user interaction to view malicious content.

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-2010-2768?

CVE-2010-2768 is a medium-severity cross-site scripting vulnerability in Mozilla Firefox, published on 9 Sep 2010. 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 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 do not properly restrict use of the type attribute of an OBJECT element to set a document's charset, which allows remote attackers to bypass cross-site scripting (XSS) protection mechanisms via UTF-7 encoding.

Weakness: CWE-79

Which versions are affected by CVE-2010-2768?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird.

How do I fix CVE-2010-2768?

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-2010-2768 being exploited?

There is no known exploitation of CVE-2010-2768 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-85q9-j3xv-55xg.

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