ivole Customer Reviews for WooCommerce Plugin up to 5.103.0 on WordPress REST API Endpoint /ivole/v1/review create_review_permissions_check key improper authentication

Summaryinfo

A vulnerability, which was classified as critical, has been found in ivole Customer Reviews for WooCommerce Plugin up to 5.103.0 on WordPress. Affected is the function create_review_permissions_check of the file /ivole/v1/review of the component REST API Endpoint. This manipulation of the argument key causes improper authentication. This vulnerability is tracked as CVE-2026-4664. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in ivole Customer Reviews for WooCommerce Plugin up to 5.103.0 on WordPress. Affected by this vulnerability is the function create_review_permissions_check of the file /ivole/v1/review of the component REST API Endpoint. The manipulation of the argument key with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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"`.

The weakness was disclosed by Supanat Konprom. It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-4664 since 03/23/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.102.0 eliminates this vulnerability.

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Productinfo

Type

• E-Commerce Management Software

Vendor

• ivole

Name

• Customer Reviews for WooCommerce Plugin

Version

• 5.103

CPE 2.3info

• 🔒

CPE 2.2info

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