{"id":"CVE-2026-4664","aliases":["EUVD-2026-21264","GHSA-jhv8-553j-r4x3"],"status":"published","title":"Customer Reviews for WooCommerce \u003c= 5.103.0 - Unauthenticated Authentication Bypass to Arbitrary Review Submission via 'key' Parameter","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\"`.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00685,"percentile":0.52893,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2026-04-10T01:24:57Z","modified":"2026-06-17T10:56:59Z","products":[{"vendor":"ivole","product":"customer reviews for woocommerce"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/27e3dfe3-ad33-4d0c-a999-d0734df2f59b?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.102.0/includes/reviews/class-cr-endpoint.php#L646"},{"url":"https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.102.0/includes/reviews/class-cr-endpoint.php#L654"},{"url":"https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.102.0/includes/reviews/class-cr-endpoint.php#L655"},{"url":"https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.102.0/includes/emails/class-cr-email.php#L345"},{"url":"https://wordpress.org/plugins/customer-reviews-woocommerce/"},{"url":"https://plugins.trac.wordpress.org/changeset?old_path=%2Fcustomer-reviews-woocommerce/tags/5.103.0\u0026new_path=%2Fcustomer-reviews-woocommerce/tags/5.104.0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4664"},{"url":"https://wordpress.org/plugins/customer-reviews-woocommerce"},{"url":"https://github.com/advisories/GHSA-jhv8-553j-r4x3"}],"sources":{"cve":[{"id":"CVE-2026-4664","title":"Customer Reviews for WooCommerce \u003c= 5.103.0 - Unauthenticated Authentication Bypass to Arbitrary Review Submission via 'key' Parameter","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\"`.","status":"published","published":"2026-04-10T01:24:57.433Z","modified":"2026-04-10T12:18:36.208Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:19:59.369956Z"}],"euvd":[{"id":"EUVD-2026-21264","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\"`.","status":"published","published":"2026-04-10T01:24:57Z","modified":"2026-04-10T12:18:36Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:30.341772Z"}],"ghsa":[{"id":"GHSA-jhv8-553j-r4x3","title":"The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to authentication bypass...","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\"`.","status":"published","published":"2026-04-10T03:31:10Z","modified":"2026-04-10T03:31:16Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:07:24.354029Z"}],"nvd":[{"id":"CVE-2026-4664","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\"`.","status":"published","published":"2026-04-10T02:16:03.71Z","modified":"2026-06-17T10:56:59.57Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:12:13.902911Z"}]}}