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Vulnerabilities and Security Researches

SupportCandy – Helpdesk & Customer Support Ticket System, CVE-2026-1251

CVE, Research URL

CVE-2026-1251

Published on
Jan 31, 2026
Research 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.
Affected versions
max 3.4.5.
Status
vulnerable