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CVE-2026-4664— Customer Reviews for WooCommerce <= 5.103.0 - Unauthenticated Authentication Bypass to Arbitrary Review Submission via 'key' Parameter

Quick assessment

Affected
ivole Customer Reviews for WooCommerce
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Customer Reviews for WooCommerce 5.103.0及之前版本存在授权问题漏洞，该漏洞源于权限检查逻辑缺陷，可能导致身份验证绕过。

CVSS 5.3 · Medium EPSS 0.57% · P45
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I. Basic Information for CVE-2026-4664

Vulnerability Information
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Vulnerability Title
Customer Reviews for WooCommerce <= 5.103.0 - Unauthenticated Authentication Bypass to Arbitrary Review Submission via 'key' Parameter
Source: CVE Program / CVE List V5
Vulnerability 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"`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Customer Reviews for WooCommerce 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Customer Reviews for WooCommerce 5.103.0及之前版本存在授权问题漏洞，该漏洞源于权限检查逻辑缺陷，可能导致身份验证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ivole Customer Reviews for WooCommerce 0 ~ 5.103.0 -

II. Public POCs for CVE-2026-4664

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III. Intelligence Information for CVE-2026-4664

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Vendor Advisories for CVE-2026-4664 (1)

IV. Related Vulnerabilities

Same product: Customer Reviews for WooCommerce
Same vendor: ivole
Same weakness: CWE-287

V. Comments for CVE-2026-4664

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