CVE-2026-11399
Received Received - Intake

Insecure Direct Object Reference in Helpdesk Support Ticket System for WooCommerce

Publication date: 2026-10-03

Last updated on: 2026-10-03

Assigner: Wordfence

Description
The Helpdesk Support Ticket System for WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.1.6 via the 'id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary ticket responses belonging to other users by supplying any stsw_responses row ID to the deletion handler after obtaining the nonce from the admin footer.

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Meta Information

Published
2026-10-03
Last Modified
2026-10-03
Generated
2026-10-03
AI Q&A
2026-10-03
EPSS Evaluated
N/A
NVD
CVE-2026-11399
EUVD
EUVD-2026-91917

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
woocommerce helpdesk_support_ticket_system to 2.1.6 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 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.

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Executive Summary

This vulnerability is an Insecure Direct Object Reference (IDOR) in the Helpdesk Support Ticket System for WooCommerce plugin for WordPress. It exists in versions up to 2.1.6 due to missing validation on a user-controlled key in the 'id' parameter. Authenticated attackers with subscriber-level access or higher can exploit this to delete arbitrary ticket responses belonging to other users by providing any stsw_responses row ID after obtaining a nonce from the admin footer.

Detection Guidance

Check WordPress installations for the Helpdesk Support Ticket System plugin versions up to 2.1.6. Look for unauthorized deletion of ticket responses or suspicious activity in logs. No specific commands are provided in the context.

Impact Analysis

If you use this plugin, an attacker with subscriber-level access could delete ticket responses you or others have submitted. This could lead to loss of important support communication, disrupting your ability to track and resolve issues effectively. The impact is limited to deletion of responses but does not allow data theft or privilege escalation.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by potentially causing loss of support ticket data, which may include sensitive user information. GDPR requires data integrity and accountability, while HIPAA mandates protection of health-related data. Unauthorized deletion of such data could lead to violations and associated penalties.

Mitigation Strategies

Update the Helpdesk Support Ticket System plugin to the latest version beyond 2.1.6. If an update is unavailable, consider disabling the plugin temporarily. Ensure strong access controls for subscriber-level users.

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