CVE-2026-93342
Received Received - Intake

Missing Authorization in MarketKing WordPress Plugin

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: VulnCheck

Description
MarketKing plugin for WordPress before 2.1.72 contains a missing authorization vulnerability in the marketking_duplicate_product AJAX action that allows authenticated attackers with subscriber-level access or higher to duplicate any vendor's product by supplying an arbitrary product ID. Attackers can bypass ownership verification to copy any vendor's product listings, including private product metadata, and assign the duplicated copy to their own vendor account without the victim's knowledge or consent.

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Meta Information

Published
2026-09-22
Last Modified
2026-09-22
Generated
2026-09-22
AI Q&A
2026-09-22
EPSS Evaluated
N/A
NVD
CVE-2026-93342
EUVD
EUVD-2026-84398

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
marketking marketking to 2.1.72 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability is a missing authorization flaw in the MarketKing WordPress plugin before version 2.1.72. It allows authenticated users with subscriber-level access or higher to duplicate any vendor's product by providing an arbitrary product ID. Attackers can bypass ownership verification to copy product listings, including private metadata, and assign the duplicated copy to their own vendor account without the original vendor's knowledge or consent.

Detection Guidance

To detect this vulnerability, check if the MarketKing plugin version is below 2.1.72. Log in as a subscriber or higher and attempt to duplicate a product by sending a POST request to /wp-admin/admin-ajax.php with the action set to marketking_duplicate_product and a product ID parameter. If successful duplication occurs without ownership verification, the vulnerability is present.

Impact Analysis

If you are a vendor using the MarketKing plugin, attackers could duplicate your product listings, including private metadata, and assign them to their own accounts without your knowledge. This could lead to loss of intellectual property, revenue, or reputation. If you are a user of the plugin, your data could be exposed or misused by unauthorized duplication of products.

Compliance Impact

This vulnerability could lead to unauthorized access and duplication of sensitive product data, which may violate GDPR's data protection principles if personal or private data is exposed. For HIPAA, if the duplicated products contain protected health information, it could result in non-compliance with privacy and security requirements.

Mitigation Strategies

Immediately update the MarketKing plugin to version 2.1.72 or later. If an update is unavailable, disable the plugin or restrict access to the marketking_duplicate_product AJAX action via server-side rules or a security plugin.

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