SQL injection vulnerability in events.php in Zabbix 1.8.1 and earlier allows remote attackers to execute arbitrary SQL commands via the nav_time parameter.
http://www.vupen.com/english/advisories/2010/1240
http://www.securityfocus.com/bid/39752
http://www.securityfocus.com/archive/1/511454/100/0/threaded
http://secunia.com/advisories/39119
http://packetstormsecurity.org/1004-exploits/zabbix181-sql.txt