CVE-2013-6672: Canonical Ubuntu Linux

Medium severity, CVSS 4.3. EPSS: 3.3% chance of exploitation in the next 30 days.

Mozilla Firefox before 26.0 and SeaMonkey before 2.23 on Linux allow user-assisted remote attackers to read clipboard data by leveraging certain middle-click paste operations.

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: before 26.0 (fixed in 26.0)
• Mozilla Seamonkey: before 2.23 (fixed in 2.23)
• Opensuse Opensuse: version 12.2 only; version 12.3 only; version 13.1 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 2026-06-17.