Customer Reviews for WooCommerce <= 5.103.0 - Unauthenticated Authentication Bypass to Arbitrary Review Submission via 'key' Parameter
| CVE | CVE-2026-4664 |
|---|---|
| CVSS | 5.3 (Medium) |
| Publicly Published | April 9, 2026 |
| Last Updated | April 10, 2026 |
| Researcher |
kai63001
|
Description
The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.103.0. This is due to the `create_review_permissions_check()` function comparing the user-supplied `key` parameter against the order's `ivole_secret_key` meta value using strict equality (`===`), without verifying that the stored key is non-empty. For orders where no review reminder email has been sent, the `ivole_secret_key` meta is not set, causing `get_meta()` to return an empty string. An attacker can supply `key: ""` to match this empty value and bypass the permission check. This makes it possible for unauthenticated attackers to submit, modify, and inject product reviews on any product — including products not associated with the referenced order — via the REST API endpoint `POST /ivole/v1/review`. Reviews are auto-approved by default since `ivole_enable_moderation` defaults to `"no"`.
Learn more about Authentication Bypass vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Customer Reviews for WooCommerce
| Software Type | Plugin |
|---|---|
| Software Slug | customer-reviews-woocommerce (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 5.104.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Customer Reviews for WooCommerce
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