Multiple SQL injection vulnerabilities in the BookLibrary Basic (com_booklibrary) component 1.5.3 before 1.5.3_2010_06_20 for Joomla! allow remote attackers to execute arbitrary SQL commands via the bid[] parameter in a (1) lend_request or (2) save_lend_request action to index.php, the id parameter in a (3) mdownload or (4) downitsf action to index.php, or (5) the searchtext parameter in a search action to index.php.
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.