Multiple SQL injection vulnerabilities in Mantis 0.17.2 and earlier, when running without magic_quotes_gpc enabled, allows remote attackers to gain privileges or perform unauthorized database operations via modified form fields, e.g. to account_update.php.
http://www.securityfocus.com/bid/5510
http://www.iss.net/security_center/static/9897.php
http://www.debian.org/security/2002/dsa-153