SQL injection vulnerability in the Eventing (com_eventing) 1.6.x component for Joomla! allows remote attackers to execute arbitrary SQL commands via the catid parameter to index.php.
https://www.exploit-db.com/exploits/7793
https://exchange.xforce.ibmcloud.com/vulnerabilities/48016
https://euvd.enisa.europa.eu/vulnerability/EUVD-2009-0425