Multiple SQL injection vulnerabilities in index.php in Joomla! 1.5 RC3 allow remote attackers to execute arbitrary SQL commands via (1) the view parameter to the com_content component, (2) the task parameter to the com_search component, or (3) the option parameter in a search action to the com_search component.
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.