CVE-2026-6176
Deferred Deferred - Pending Action

Stored XSS in Customer Reviews for WooCommerce Plugin

Publication date: 2026-08-28

Last updated on: 2026-08-28

Assigner: Wordfence

Description
The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the aggregated review form submission in versions up to and including 5.106.0. This is due to insufficient input sanitization and output escaping on user-supplied review comment text. The plugin accepts review submissions from unauthenticated users through the 'cr_local_forms_submit' AJAX action without sanitizing HTML content before storing it via wp_insert_comment(), and later renders this stored content on product pages through comment_text() without proper escaping. This makes it possible for unauthenticated attackers with a valid review form URL (obtainable through review reminder emails sent to customers who placed orders) to inject arbitrary web scripts in pages that will execute whenever a user accesses the affected product page.

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Meta Information

Published
2026-08-28
Last Modified
2026-08-28
Generated
2026-08-29
AI Q&A
2026-08-28
EPSS Evaluated
N/A
NVD
CVE-2026-6176
EUVD
EUVD-2026-67711

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
woocommerce customer_reviews to 5.106.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in the Customer Reviews for WooCommerce plugin for WordPress. It allows unauthenticated attackers to inject malicious scripts into review comments via insufficient input sanitization and output escaping. The scripts execute when users view product pages containing the malicious reviews.

Detection Guidance

This vulnerability involves stored XSS in the Customer Reviews for WooCommerce plugin. To detect it, inspect WordPress sites using this plugin for unauthenticated review submissions via the 'cr_local_forms_submit' AJAX action. Check for unsanitized HTML in stored comments by reviewing database entries in the wp_comments table. Look for product pages rendering unescaped scripts in review text.

Impact Analysis

Attackers can steal user sessions, redirect users to malicious sites, or perform actions on their behalf. Since reviews are displayed on product pages, all visitors to those pages may be affected. The vulnerability requires a valid review form URL, which can be obtained from review reminder emails sent to customers.

Compliance Impact

This vulnerability could lead to data breaches, compromising user data and violating privacy regulations like GDPR and HIPAA. The potential for session hijacking and unauthorized access to user accounts may result in non-compliance with data protection requirements.

Mitigation Strategies

Immediately update the Customer Reviews for WooCommerce plugin to the latest version. Disable the 'cr_local_forms_submit' AJAX action if not needed. Implement strict input sanitization for review submissions and ensure output escaping on product pages. Remove any suspicious review comments containing scripts from the database.

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