CVE-2009-0355: Mozilla Firefox

Medium severity, CVSS 5.4. EPSS: 1.6% chance of exploitation in the next 30 days.

components/sessionstore/src/nsSessionStore.js in Mozilla Firefox before 3.0.6 does not block changes of INPUT elements to type="file" during tab restoration, which allows user-assisted remote attackers to read arbitrary files on a client machine via a crafted INPUT element.

Affected products

• Mozilla Firefox: up to and including 3.0.5; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2009-02-04. Last modified 2026-06-16.