CVE-2010-0171: Mozilla Firefox

Medium severity, CVSS 4.3. EPSS: 1.8% chance of exploitation in the next 30 days.

Mozilla Firefox 3.0.x before 3.0.18, 3.5.x before 3.5.8, and 3.6.x before 3.6.2; Thunderbird before 3.0.2; and SeaMonkey before 2.0.3 allow remote attackers to perform cross-origin keystroke capture, and possibly conduct cross-site scripting (XSS) attacks, by using the addEventListener and setTimeout functions in conjunction with a wrapped object. NOTE: this vulnerability exists because of an incomplete fix for CVE-2007-3736.

Affected products

• Mozilla Firefox: version 3.0 only; version 3.0.1 only; version 3.0.10 only; version 3.0.11 only; version 3.0.12 only; version 3.0.13 only; …
• Mozilla Seamonkey: up to and including 2.0.2; version 1.1 only; version 1.1.1 only; version 1.1.2 only; version 1.1.3 only; version 1.1.4 only; …
• Mozilla Thunderbird: up to and including 3.0.1; version 1.5 only; version 1.5.0.1 only; version 1.5.0.2 only; version 1.5.0.3 only; version 1.5.0.4 only; …

Published 2010-03-25. Last modified 2026-06-16.