CVE-2009-4102 Code injection in n/a

What is CVE-2009-4102?

CVE-2009-4102 is a critical code injection vulnerability in Mozilla Firefox, published on 28 Nov 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

Sage 1.4.3 and earlier extension for Firefox performs certain operations with chrome privileges, which allows remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via the description tag of an RSS feed.

Weakness: CWE-20

Which versions are affected by CVE-2009-4102?

It affects 2 products.

Products include Mozilla Firefox, Sage.mozdev Sage.

How do I fix CVE-2009-4102?

Upgrade to a fixed version.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2009-4102 being exploited?

There is no known exploitation of CVE-2009-4102 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DSA-1951-1, GHSA-g29q-9g3g-6fjr.