What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
SupportCandy versions up to 3.4.4 contain a SQL injection vulnerability in a database query that processes user input without proper sanitization. An authenticated user with low privileges can craft a malicious request to extract sensitive data from the site's database, including customer information and support tickets. The vulnerability requires valid login credentials but no additional user interaction.
What an attacker can do
03Attacker Capabilities
Extract sensitive data from the site database, including customer records and ticket information.
Potential impact on your site
04Site Impact
Customer data and support ticket contents may be exposed to authenticated users who should not have access to them.
Conditions required to exploit
05Prerequisites
Attacker must have a valid user account with low-level privileges on the site.
Key dates
06Disclosure timeline
January 31, 2026
CVE published
April 8, 2026
Record updated
