SQL injection vulnerability in includes/module/book/index.inc.php in w3b|cms Gaestebuch Guestbook Module 3.0.0, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the spam_id parameter.
Improper Neutralization of Special Elements used in an SQL Command 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.