CVE-2026-1251

MEDIUM

SupportCandy - Helpdesk & Customer Support Ticket System <3.4.4 - I...

Title source: llm

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.

References (3)

[Product] https://plugins.trac.wordpress.org/browser/supportcandy/trunk/includes/admin/tickets/class-wpsc-individual-ticket.php#L1603

[Product] https://plugins.trac.wordpress.org/changeset/3448376/

[Third Party Advisory] https://www.wordfence.com/threat-intel/vulnerabilities/id/89df3005-0967-474f-8a4e-3b23273dd1a2?source=cve

Scores

CVSS v3 5.4

EPSS 0.0001

EPSS Percentile 1.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-639

Status published

Products (1)

psmplugins/SupportCandy – Helpdesk & Customer Support Ticket System < 3.4.4

Published Jan 31, 2026

Tracked Since Feb 18, 2026