CVE-2026-78434 Faveo Helpdesk post-ticket-reply Endpoint FormController.php post_ticket_reply missing authentication
Remote attackers can submit ticket replies without authentication due to missing checks in the post-ticket-reply endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78434?
CVE-2026-78434 is a medium-severity missing authorization vulnerability in Faveo Helpdesk, published on 24 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw has been found in Faveo Helpdesk up to 2.0.3. This impacts the function FormController::post_ticket_reply of the file app/Http/Controllers/Client/helpdesk/FormController.php of the component post-ticket-reply Endpoint. This manipulation causes missing authentication. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-78434?
How do I fix CVE-2026-78434?
No fix has been published for CVE-2026-78434 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-78434 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78434 exists.
Sources
Also known as GHSA-j3fx-x2vv-hrr9.