CVE-2026-4664

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 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 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 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".