CVE-2011-2999 Security feature bypass in n/a

What is CVE-2011-2999?

CVE-2011-2999 is a medium-severity vulnerability in Mozilla Firefox, published on 29 Sep 2011. 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 3.6.23 and 4.x through 5, Thunderbird before 6.0, and SeaMonkey before 2.3 do not properly handle "location" as the name of a frame, which allows remote attackers to bypass the Same Origin Policy via a crafted web site, a different vulnerability than CVE-2010-0170.

Weakness: CWE-264

Which versions are affected by CVE-2011-2999?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird.

How do I fix CVE-2011-2999?

Upgrade to a fixed version.

Is CVE-2011-2999 being exploited?

There is no known exploitation of CVE-2011-2999 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 GHSA-f562-g9gh-gpgg.