SQL injection in psmplugins SupportCandy – Helpdesk & Customer Support Ticket System
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| psmplugins | SupportCandy – Helpdesk & Customer Support Ticket System | up to 3.4.4 | — | No fix listed | CNA |
- SupportCandy – Helpdesk & Customer Support Ticket System Vendorpsmplugins Affected up to 3.4.4 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-0683
- 2026-10-03 Alias added: GHSA-mmpc-h738-6mc3
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a7856d0f-bc7d-436c-968c-631fd6a686ab?source=cve
- 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/
More psmplugins vulnerabilities
- TI-2026-51470 WordPress SupportCandy plugin <= 3.5.1 - Broken Authentication vulnerability CVSS 3.1HIGH 8.2
- TI-2025-09757 SupportCandy – Helpdesk & Customer Support Ticket System <= 3.3.7 - Authentication Bypass to Support Session Takeover CVSS 3.1MEDIUM 6.5
- TI-2026-39629 WordPress SupportCandy plugin <= 3.4.6 - Insecure Direct Object References (IDOR) vulnerability CVSS 3.1HIGH 7.6
- TI-2026-20439 WordPress SupportCandy plugin <= 3.4.4 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
- TI-2026-67401 SupportCandy <= 3.5.3 - Authenticated (Custom+) SQL Injection via 'sort_by' Parameter CVSS 3.1MEDIUM 6.5
- TI-2026-67400 SupportCandy <= 3.5.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'name' Parameter CVSS 3.1MEDIUM 6.4
Sources
- CVE-2026-0683 · CVE Program
- CVE-2026-0683 · NVD
- FIRST EPSS
- GHSA-mmpc-h738-6mc3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences