bugzilla -- multiple vulnerabilities

A Bugzilla Security Advisory reports:

The following security issues have been discovered in
Bugzilla:
Unauthorized Access
Due to a lack of proper validation of the X-FORWARDED-FOR
header of an authentication request, an attacker could bypass
the current lockout policy used for protection against brute-
force password discovery. This vulnerability can only be
exploited if the ‘inbound_proxies’ parameter is set.
Cross Site Scripting
A JavaScript template used by buglist.cgi could be used
by a malicious script to permit an attacker to gain access
to some information about bugs he would not normally be
allowed to see, using the victim’s credentials. To be
exploitable, the victim must be logged in when visiting
the attacker’s malicious page.
All affected installations are encouraged to upgrade as soon
as possible.