CVE-2026-77695
Deferred Deferred - Pending Action

Unauthenticated Order Manipulation in WooCommerce Return Refund and Exchange

Publication date: 2026-08-26

Last updated on: 2026-08-26

Assigner: WPScan

Description
The Return Refund and Exchange For WooCommerce WordPress plugin before 4.6.4 does not correctly verify the ownership of guest orders in some of the AJAX actions it exposes to unauthenticated users, allowing them to read private order messages, post messages and attachments in the customer's name, and cancel return requests on any guest order.

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Meta Information

Published
2026-08-26
Last Modified
2026-08-26
Generated
2026-09-16
AI Q&A
2026-08-26
EPSS Evaluated
2026-09-14
NVD
CVE-2026-77695
EUVD
EUVD-2026-66285

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
woocommerce return_refund_and_exchange to 4.6.4 (exc)
woocommerce woo_refund_and_exchange_lite to 4.6.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

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Executive Summary

This vulnerability affects the Return Refund and Exchange For WooCommerce WordPress plugin before version 4.6.4. It allows unauthenticated users to exploit improper access controls in AJAX actions. Attackers can view private order messages, post messages or attachments as customers, and cancel return requests on any guest order without verifying ownership.

Detection Guidance

Check if the Woo Refund And Exchange Lite plugin is installed and verify its version. If it is below 4.6.4, the system is vulnerable. Use WordPress admin panel or run a command like 'wp plugin list' if using WP-CLI to check the plugin version.

Impact Analysis

If you use this plugin, attackers could access sensitive order information, impersonate customers by posting messages or attachments, and disrupt return processes. This could lead to data breaches, reputational damage, and financial loss due to unauthorized order modifications.

Compliance Impact

This vulnerability could violate GDPR by exposing private customer order messages and attachments without consent. For HIPAA, if order data includes protected health information, unauthorized access could breach compliance. Organizations may face fines or legal penalties for failing to protect sensitive data.

Mitigation Strategies

Update the Woo Refund And Exchange Lite plugin to version 4.6.4 or later immediately. If updating is not possible, consider disabling the plugin temporarily until an update is applied.

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