Mozilla · Thunderbird · CVE-2012-1959
**Name of the Vulnerable Software and Affected Versions**
Mozilla Firefox versions 4.x through 13.0
Firefox ESR versions 10.x before 10.0.6
Thunderbird versions 5.0 through 13.0
Thunderbird ESR versions 10.x before 10.0.6
SeaMonkey versions prior to 2.11
**Description**
The issue allows remote attackers to bypass intended XBL access restrictions via crafted content, as the presence of same-compartment security wrappers (SCSW) is not considered during the cross-compartment wrapping of objects.
**Recommendations**
For Mozilla Firefox versions 4.x through 13.0, update to a version after 13.0.
For Firefox ESR versions 10.x before 10.0.6, update to version 10.0.6 or later.
For Thunderbird versions 5.0 through 13.0, update to a version after 13.0.
For Thunderbird ESR versions 10.x before 10.0.6, update to version 10.0.6 or later.
For SeaMonkey versions prior to 2.11, update to version 2.11 or later.