CVE-2010-3770 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can inject arbitrary web script or HTML into Firefox and SeaMonkey browsers via specific character encodings, 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-2010-3770?

CVE-2010-3770 is a medium-severity cross-site scripting vulnerability in Mozilla Firefox, published on 10 Dec 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

Multiple cross-site scripting (XSS) vulnerabilities in the rendering engine in Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, and SeaMonkey before 2.0.11, allow remote attackers to inject arbitrary web script or HTML via (1) x-mac-arabic, (2) x-mac-farsi, or (3) x-mac-hebrew characters that may be converted to angle brackets during rendering.

Weakness: CWE-79

Which versions are affected by CVE-2010-3770?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Seamonkey.

How do I fix CVE-2010-3770?

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-2010-3770 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-3770 exists.

Public exploit code: 1 Exploit-DB entry.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-pw4w-9632-fcjp.

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