SQL injection vulnerability in the get_employee function in classweekreport.inc in Achievo before 1.4.0 allows remote attackers to execute arbitrary SQL commands via the userid parameter (aka user_id variable) to dispatch.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/53743
https://euvd.enisa.europa.eu/vulnerability/EUVD-2009-2725
http://www.securityfocus.com/bid/36660
http://www.securityfocus.com/archive/1/507131/100/0/threaded
http://www.bonsai-sec.com/research/vulnerabilities/achievo-sql-injection-0102.txt
http://www.achievo.org/download/releasenotes/1_4_0