CVE-2007-4038: Mozilla Firefox
Medium severity, CVSS 4.3. EPSS: 1.1% chance of exploitation in the next 30 days.
Argument injection vulnerability in Mozilla Firefox before 2.0.0.5, when running on systems with Thunderbird 1.5 installed and certain URIs registered, allows remote attackers to conduct cross-browser scripting attacks and execute arbitrary commands via shell metacharacters in a mailto URI, which are inserted into the command line that is created when invoking Thunderbird.exe, a similar issue to CVE-2007-3670.
Affected products
Published 2007-07-27. Last modified 2026-06-16.