Multiple cross-site scripting (XSS) vulnerabilities in the Helpdesk Pro plugin before 1.4.0 for Joomla! allow remote attackers to inject arbitrary web script or HTML via vectors related to name and message.
Multiple SQL injection vulnerabilities in the Helpdesk Pro plugin before 1.4.0 for Joomla! allow remote attackers to execute arbitrary SQL commands via the (1) ticket_code or (2) email parameter or (3) remote authenticated users to execute arbitrary SQL commands via the filter_order parameter.
Directory traversal vulnerability in the Helpdesk Pro plugin before 1.4.0 for Joomla! allows remote attackers to read arbitrary files via a .. (dot dot) in the filename parameter in a ticket.download_attachment task.
The Helpdesk Pro Plugin before 1.4.0 for Joomla! allows remote attackers to read the support tickets of arbitrary users via obtaining the target ticketId, and navigating to http://{target}/component/helpdeskpro/?view=ticket&id={ticketId}.