CVE-2026-0683: SupportCandy – Helpdesk & Customer Support Ticket System <= 3.4.4 - Authenticated (Subscriber+) SQL Injection via Number Field Filter
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-0683?
CVE-2026-0683 is classified as a medium severity SQL Injection vulnerability.
How do I fix CVE-2026-0683?
To fix CVE-2026-0683, update the SupportCandy plugin to version 3.4.5 or later.
Who is affected by CVE-2026-0683?
All users of SupportCandy – Helpdesk & Customer Support Ticket System versions 3.4.4 and below are affected by CVE-2026-0683.
What type of vulnerability is CVE-2026-0683?
CVE-2026-0683 is an SQL Injection vulnerability that allows attackers to manipulate database queries.
What can attackers do with CVE-2026-0683?
Attackers exploiting CVE-2026-0683 can potentially gain unauthorized access to sensitive data in the database.