CVE-2014-1552: Mozilla Firefox

Medium severity, CVSS 5.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Mozilla Firefox before 31.0 and Thunderbird before 31.0 do not properly implement the sandbox attribute of the IFRAME element, which allows remote attackers to bypass intended restrictions on same-origin content via a crafted web site in conjunction with a redirect.

Affected products

• Mozilla Firefox: up to and including 30.0
• Mozilla Thunderbird: up to and including 24.7; version 24.0 only; version 24.0.1 only; version 24.1 only; version 24.1.1 only; version 24.2 only; …

Published 2014-07-23. Last modified 2026-06-17.