CVE-2014-1483: Mozilla Firefox before 27.0 and SeaMonkey before 2.24 allow remote attackers to bypass the Same Origin Poli...

Security readout for executives and security teams

A malicious web page could make older Firefox or SeaMonkey browsers leak sensitive cross-origin information by abusing iframe timing behavior. This breaks a core browser privacy boundary, but the sourced record does not show active exploitation or a CVSS score. Exposure is most likely where legacy Firefox before 27.0 or SeaMonkey before 2.24 remains in use, including unmanaged endpoints or old Linux distribution packages. Modern managed browsers should generally be outside scope if updated. Treat as a cleanup and legacy-risk item, not an emergency unless old browsers remain in production. The business concern is data leakage across web origins from obsolete client software. Mitigation focus: Upgrade Firefox to 27.0 or later where still present.; Upgrade SeaMonkey to 2.24 or later where still present.; Apply relevant Linux distribution browser security updates..

Prepared

Jun 14, 2026, 14:50 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.