CVE-2013-5611: Canonical Ubuntu Linux

Medium severity, CVSS 5.8. EPSS: 2.1% chance of exploitation in the next 30 days.

Mozilla Firefox before 26.0 does not properly remove the Application Installation doorhanger, which makes it easier for remote attackers to spoof a Web App installation site by controlling the timing of page navigation.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 12.10 only; version 13.04 only; version 13.10 only
• Fedoraproject Fedora: version 19 only; version 20 only
• Mozilla Firefox: up to and including 25.0.1; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …
• Opensuse Opensuse: version 13.1 only
• Opensuse Project Opensuse: version 11.4 only; version 12.3 only
• Oracle Solaris: version 11.3 only
• Suse Linux Enterprise Desktop: version 11 only
• Suse Linux Enterprise Server: version 11 only
• Suse Linux Enterprise Software Development Kit: version 11 only

Published 2013-12-11. Last modified 2026-06-16.