SQL injection vulnerability in the Intellectual Property (aka IProperty or com_iproperty) component 1.5.3 for Joomla! allows remote attackers to execute arbitrary SQL commands via the id parameter in an agentproperties action to index.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/57875
http://www.securityfocus.com/bid/39495
http://www.exploit-db.com/exploits/12246