SQL injection vulnerability in phpgwapi /inc/class.auth_sql.inc.php in phpGroupWare 0.9.16.12, and possibly other versions before 0.9.16.014, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the passwd parameter to login.php.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.