CVE-2026-1251 Missing authorization in SupportCandy – Helpdesk & Customer Support Ticket System
Authenticated attackers can steal file attachments from other users by manipulating attachment IDs in the SupportCandy WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1251?
CVE-2026-1251 is a medium-severity missing authorization vulnerability in psmplugins SupportCandy – Helpdesk & Customer Support Ticket System, published on 31 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-1251?
How do I fix CVE-2026-1251?
No fix has been published for CVE-2026-1251 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-2026-1251 being exploited?
There is no known exploitation of CVE-2026-1251 in the wild and no public exploit code.
Sources
Also known as GHSA-h992-gjw5-53j3.