What’s Vulnerable › Vulnerabilities

CVE-2026-0683: SupportCandy – Helpdesk & Customer Support Ticket System <= 3.4.4 - Authenticated (Subscriber+) SQL Injection via Number Field Filter

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-31 · updated 2026-06-17
• Weakness: CWE-89

Description

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 products

• psmplugins SupportCandy – Helpdesk & Customer Support Ticket System: through 3.4.4

References

• https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.4.4/includes/admin/tickets/class-wpsc-ticket-list.php#L1265
• https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.4.4/includes/admin/tickets/class-wpsc-ticket-list.php#L1288
• https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.4.4/includes/custom-field-types/class-wpsc-cf-number.php#L371
• https://plugins.trac.wordpress.org/changeset/3448376/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a7856d0f-bc7d-436c-968c-631fd6a686ab?source=cve

Get alerted when CVE-2026-0683 or the next vulnerability affects your stack