{"id":"DRUPAL-CONTRIB-2026-326","details":"This module integrates the Campaign Monitor API into Drupal so that users can subscribe and unsubscribe for your Campaign Monitor. It manages lists through a block on your Drupal site.\n\nThe module doesn't sufficiently protect against cross-site request forgery (CSRF) on its admin routes.\n\nThis vulnerability is mitigated by the fact that an attacker must craft and embed into a Drupal site a link with exact ID of a Campaign Monitor list for user with *administer campaignmonitor* permission to click.","aliases":["CVE-2026-126735"],"modified":"2026-11-11T18:45:02.707585180Z","published":"2026-11-11T17:51:14Z","references":[{"type":"WEB","url":"https://www.drupal.org/sa-contrib-2026-326"}],"affected":[{"package":{"name":"drupal/campaignmonitor","ecosystem":"Packagist:https://packages.drupal.org/8","purl":"pkg:composer/drupal/campaignmonitor?repository_url=https:%2F%2Fpackages.drupal.org%2F8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.3"}],"database_specific":{"constraint":"\u003c3.0.3"}}],"database_specific":{"affected_versions":"\u003c3.0.3","source":"https://github.com/DrupalSecurityTeam/drupal-advisory-database/blob/main/advisories/campaignmonitor/DRUPAL-CONTRIB-2026-326.json"}}],"schema_version":"1.9.2","credits":[{"name":"Juraj Nemec (poker10)","contact":["https://www.drupal.org/u/poker10"]}]}