SQL injection vulnerability in interface/login/validateUser.php in OpenEMR 4.1.0 and possibly earlier allows remote attackers to execute arbitrary SQL commands via the u parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/71983
http://www.openwall.com/lists/oss-security/2012/04/18/7
http://www.openwall.com/lists/oss-security/2012/04/17/1
http://www.open-emr.org/wiki/index.php/OpenEMR_Patches
http://www.mavitunasecurity.com/sql-injection-vulnerability-in-openemr/
http://seclists.org/fulldisclosure/2012/Jan/27
http://archives.neohapsis.com/archives/bugtraq/2012-01/0013.html