Bugzilla 3.2 before 3.2 RC2, 3.0 before 3.0.6, 2.22 before 2.22.6, 2.20 before 2.20.7, and other versions after 2.17.4 allows remote authenticated users to bypass moderation to approve and disapprove quips via a direct request to quips.cgi with the action parameter set to "approve."

Directory traversal vulnerability in importxml.pl in Bugzilla before 2.22.5, and 3.x before 3.0.5, when --attach_path is enabled, allows remote attackers to read arbitrary files via an XML file with a .. (dot dot) in the data element.

Cross-site scripting (XSS) vulnerability in Bugzilla 2.17.2 and later allows remote attackers to inject arbitrary web script or HTML via the id parameter to the "Format for Printing" view or "Long Format" bug list.

email_in.pl in Bugzilla 2.23.4, 3.0.x before 3.0.4, and 3.1.x before 3.1.4 allows remote authenticated users to more easily spoof the changer of a bug via a @reporter command in the body of an e-mail message, which overrides the e-mail address as normally obtained from the From e-mail header. NOTE: since From headers are easily spoofed, this only crosses privilege boundaries in environments that provide additional verification of e-mail addresses.

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.

Cross-site scripting (XSS) vulnerability in Atom feeds in Bugzilla 2.20.3, 2.22.1, and 2.23.3, and earlier versions down to 2.20.1, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The mod_perl initialization script in Bugzilla 2.23.3 does not set the Bugzilla Apache configuration to allow .htaccess permissions to override file permissions, which allows remote attackers to obtain the database username and password via a direct request for the localconfig file.