SQL injection vulnerability in e107_admin/users_extended.php in e107 before 0.7.26 allows remote attackers to execute arbitrary SQL commands via the user_field parameter.
https://www.htbridge.com/advisory/multiple_vulnerabilities_in_e107_1.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/68061
http://www.openwall.com/lists/oss-security/2012/03/29/3
http://www.openwall.com/lists/oss-security/2012/03/28/4