CVE-2003-0594: Mozilla

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

Mozilla allows remote attackers to bypass intended cookie access restrictions on a web application via "%2e%2e" (encoded dot dot) directory traversal sequences in a URL, which causes Mozilla to send the cookie outside the specified URL subsets, e.g. to a vulnerable application that runs on the same server as the target application.

Affected products

• Mozilla Mozilla: version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.1 only; version 1.2 only; version 1.2.1 only; …

Published 2004-04-15. Last modified 2026-06-16.