Multiple SQL injection vulnerabilities in the content component (com_content) in Joomla! 1.5 Beta1, Beta2, and RC1 allow remote attackers to execute arbitrary SQL commands via the filter parameter in an archive action to (1) archive.php, (2) category.php, or (3) section.php in models/. NOTE: this may be the same as CVE-2007-4777.
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.