SupportCandy – Helpdesk & Customer Support Ticket System: Broken access control

SupportCandy – Helpdesk & Customer Support Ticket System is affected by broken access control. Exploitation requires an authenticated subscriber account. A successful request can reach data or an operation that should be restricted to another user or a more privileged role.

CVE / CNA score 5.4 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: SupportCandy – Helpdesk & Customer Support Ticket System
Plugin slug: supportcandy
Affected: See vendor advisory
Safe version: See mitigation notes
Published: Jan 31, 2026
Weakness: CWE-639 — Authorization Bypass Through User-Controlled Key

This CVE was published Jan 31, 2026 and is one of 21 known issues for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified. Update SupportCandy – Helpdesk & Customer Support Ticket System when a confirmed fixed release becomes available; until then, disable and remove it when the site's risk warrants.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

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 'add_reply' 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 'description_attachments' parameter, re-associating those files to their own tickets and removing access from the original owners.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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