The WebService (XML-RPC) interface in Bugzilla 2.23.3 through 3.0.0 does not enforce permissions for the time-tracking fields of bugs, which allows remote attackers to obtain sensitive information via certain XML-RPC requests, as demonstrated by the (1) Deadline and (2) Estimated Time fields.
osvdb.org/37202
secunia.com/advisories/26584
secunia.com/advisories/26971
security.gentoo.org/glsa/glsa-200709-18.xml
www.bugzilla.org/security/2.20.4/
www.securityfocus.com/archive/1/477630/100/0/threaded
www.securityfocus.com/bid/25425
www.securitytracker.com/id?1018604
www.vupen.com/english/advisories/2007/2977
bugzilla.mozilla.org/show_bug.cgi?id=382056
exchange.xforce.ibmcloud.com/vulnerabilities/36244