In Drupal 8 prior to 8.3.7; When using the REST API, users without the correct permission can post comments via REST that are approved even if the user does not have permission to post approved comments. This issue only affects sites that have the RESTful Web Services (rest) module enabled, the comment entity REST resource enabled, and where an attacker can access a user account on the site with permissions to post comments, or where anonymous users can post comments.

The entity_access API in the Entity API module 7.x-1.x before 7.x-1.3 for Drupal might allow remote authenticated users to bypass intended access restrictions and read unpublished comments via unspecified vectors.

The entity wrapper access API in the Entity API module 7.x-1.x before 7.x-1.3 for Drupal might allow remote authenticated users to bypass intended access restrictions on referenced entities via unspecified vectors.

The entity wrapper access API in the Entity API module 7.x-1.x before 7.x-1.3 for Drupal might allow remote authenticated users to bypass intended access restrictions on comment, user and node statistics properties via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the Entity API module before 7.x-1.6 for Drupal allows remote authenticated users to inject arbitrary web script or HTML via a field label in the Token API.

The Entity API module 7.x-1.x before 7.x-1.2 for Drupal, when using the (a) Views field or (b) area plugins, allows remote attackers to read restricted entities via the (1) field, (2) header, or (3) footer of a View. NOTE: this identifier was SPLIT from CVE-2013-4273 per ADT5 due to different researcher organizations.

The Entity API module 7.x-1.x before 7.x-1.2 for Drupal does not properly restrict access to node comments, which allows remote authenticated users to read the comments via unspecified vectors. NOTE: this identifier was SPLIT per ADT5 due to different researcher organizations. CVE-2013-7391 was assigned for the View vector.