nspluginwrapper is vulnerable to authorization bypass attacks. The vulnerability exists as nspluginwrapper before 1.4.4 does not properly provide access to NPNVprivateModeBool variable settings, which could prevent Firefox plugins from determining if they should run in Private Browsing mode and allow remote attackers to bypass intended access restrictions, as demonstrated using Flash.
lwn.net/Alerts/524725/
rhn.redhat.com/errata/RHSA-2012-1459.html
www.securitytracker.com/id?1027757
access.redhat.com/security/updates/classification/#low
bugzilla.novell.com/show_bug.cgi?id=702034
bugzilla.redhat.com/show_bug.cgi?id=715384
github.com/davidben/nspluginwrapper/commit/7e4ab8e1189846041f955e6c83f72bc1624e7a98
rhn.redhat.com/errata/RHSA-2012-1459.html