HAPPY – Helpdesk Support Ticket System: A security weakness
HAPPY – Helpdesk Support Ticket System is affected by a security weakness. Exploitation requires an authenticated subscriber account. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- HAPPY – Helpdesk Support Ticket System
- Plugin slug
happy-helpdesk-support-ticket-system- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Dec 13, 2025
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Dec 13, 2025 and is one of 6 known issues for this plugin.
Update, patch or deactivate.
No fixed release is identified. Update HAPPY – Helpdesk 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.
Technical description
The HAPPY – Helpdesk Support Ticket System plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the 'submit_form_reply' AJAX action in all versions up to, and including, 1.0.9. This makes it possible for authenticated attackers, with Subscriber-level access and above, to submit replies to arbitrary support tickets by manipulating the 'happy_topic_id' parameter, regardless of whether they are the ticket owner or have been assigned to the ticket.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N