CVE-2007-1084: Mozilla Firefox

Medium severity, CVSS 6.8. EPSS: 1.5% chance of exploitation in the next 30 days.

Mozilla Firefox 2.0.0.1 and earlier does not prompt users before saving bookmarklets, which allows remote attackers to bypass the same-domain policy by tricking a user into saving a bookmarklet with a data: scheme, which is executed in the context of the last visited web page.

Affected products

• Mozilla Firefox: up to and including 2.0.0.1; version 0.8 only; version 0.9 only; version 0.9.1 only; version 0.9.2 only; version 0.9.3 only; …

Published 2007-02-23. Last modified 2026-06-16.