Not sure if $taboo was getting sanitized or not. Possibly an SQL injection vulnerability that allows maliciously crafted group names to inject SQL at a later date when the group CP is loaded. Unconfirmed, theoretical fix.
dd659f6ba891
Converting all tables on new installations to UTF-8; this may break MySQL 4.0 compatibility; several minor cosmetic fixes; set Powered button under Links to "on" by default