Unauthenticated Broken Authentication in SupportCandy <= 3.5.1 versions.

The SupportCandy – Helpdesk & Customer Support Ticket System plugin for WordPress is vulnerable to SQL Injection via the Number-type custom field filter in all versions up to, and including, 3.4.4. This is due to insufficient escaping on the user-supplied operand value when using the equals operator and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Subscriber-level access and above (customers), to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The SupportCandy – Helpdesk & Customer Support Ticket System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.4.4 via the 'addreply' function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to steal file attachments uploaded by other users by specifying arbitrary attachment IDs in the 'descriptionattachments' parameter, re-associating those files to their own tickets and removing access from the original owners.

Missing Authorization vulnerability in PSM Plugins SupportCandy supportcandy allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects SupportCandy: from n/a through <= 3.4.4.

Cross-Site Request Forgery (CSRF) vulnerability in PSM Plugins SupportCandy supportcandy allows Cross Site Request Forgery.This issue affects SupportCandy: from n/a through <= 3.4.1.