The ELEX WordPress HelpDesk & Customer Ticketing System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.2.9 via the 'eh_crm_ticket_single_view_client' due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read the contents of all support tickets.
The ELEX WordPress HelpDesk & Customer Ticketing System plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'eh_crm_remove_agent' function in all versions up to, and including, 3.3.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to remove the role and capabilities of any user with an Administrator, WSDesk Supervisor, or WSDesk Agents role.
The ELEX WordPress HelpDesk & Customer Ticketing System plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the eh_crm_new_ticket_post() function in all versions up to, and including, 3.3.1. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
The ELEX WordPress HelpDesk & Customer Ticketing System plugin for WordPress is vulnerable to privilege escalation due to a missing capability check on the 'eh_crm_agent_add_user' AJAX action in all versions up to, and including, 3.2.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create new administrative user accounts.