The is_eow function in format.c in CVSTrac before 2.0.1 does not properly check for the "'" (quote) character, which allows remote authenticated users to execute limited SQL injection attacks and cause a denial of service (database error) via a ' character in certain messages, tickets, or Wiki entries.
http://www.vupen.com/english/advisories/2007/0398
http://www.securityfocus.com/bid/22296
http://www.securityfocus.com/archive/1/458455/100/0/threaded
http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.008.html
http://www.cvstrac.org/cvstrac/tktview?tn=683
http://www.cvstrac.org/cvstrac/chngview?cn=850
http://securityreason.com/securityalert/2192
http://secunia.com/advisories/23940
http://lists.grok.org.uk/pipermail/full-disclosure/2007-January/052058.html