CVE-2026-18603
Received Received - Intake

Unauthenticated Order Data Exposure in PiWeb for WooCommerce

Publication date: 2026-08-09

Last updated on: 2026-08-09

Assigner: WPScan

Description
The PiWeb Cancel order / Refund request for WooCommerce WordPress plugin before 1.3.4.34 does not have authorization or ownership checks when adding the contents of a previous order to the cart, allowing unauthenticated users to disclose the contents of other customers' orders, as well as to clear and repopulate a logged in user's cart via a crafted link.

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Meta Information

Published
2026-08-09
Last Modified
2026-08-09
Generated
2026-08-09
AI Q&A
2026-08-09
EPSS Evaluated
N/A
NVD
CVE-2026-18603
EUVD
EUVD-2026-54881

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability affects the WordPress plugin 'Cancel Order & Request Woocommerce' versions before 1.3.4.34. It allows unauthenticated users to view other customers' order details and manipulate a logged-in user's cart by exploiting missing authorization checks in reorder AJAX actions.

Detection Guidance

Check the installed version of the 'Cancel Order & Request Woocommerce' plugin. If it is below 1.3.4.34, the system is vulnerable. Use WordPress admin panel or run a command like 'wp plugin list' in the WordPress directory to verify the version.

Impact Analysis

Unauthenticated users could access sensitive order information from other customers, including product details and quantities. They could also clear and repopulate a logged-in user's cart via a crafted link, potentially leading to fraud or confusion.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR's data protection principles. For HIPAA, it may expose protected health information if order details include such data, risking compliance with privacy requirements.

Mitigation Strategies

Update the 'Cancel Order & Request Woocommerce' plugin to version 1.3.4.34 or later immediately. Disable the plugin temporarily if an update is not immediately available. Monitor for suspicious cart or order activity as a precaution.

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