SupportCandy – Helpdesk & Customer Support Ticket System <= 3.4.4 - Authenticated (Subscriber+) Insecure Direct Object Reference

2026-01-23 00:00

Theklis

Strategic Overview

Status

Patched in 3.4.5

Affected PluginSupportCandy – AI Customer Support Ticket System & Live Chatbot Agent

Affected Version<= 3.4.4

CVSS5.4Medium

CVECVE-2026-1251

View all SupportCandy – AI Customer Support Ticket System & Live Chatbot Agent vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 3.4.5, or a newer patched version --- IDENTIFIER: CWE-639 (Authorization Bypass Through User-Controlled Key) The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

External References

https://www.cve.org/CVERecord?id=CVE-2026-1251 https://www.wordfence.com/threat-intel/vulnerabilities/id/89df3005-0967-474f-8a4e-3b23273dd1a2

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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