{"schema_version":"1.9.0","id":"DRUPAL-CONTRIB-2026-217","published":"2026-10-07T16:58:12Z","modified":"2026-10-07T20:15:05.735614565Z","aliases":["CVE-2026-107262"],"details":"Advanced File System turns Drupal's file storage into a manageable, observable and maintainable subsystem.\n\nThe Advanced Filesystem: Backup submodule does not sufficiently validate certain requests. This may allow an attacker to trick an authenticated user into performing unintended actions through a Cross-Site Request Forgery (CSRF) vulnerability.\n\nThe vulnerability is mitigated by the fact that `advanced_filesystem_backup` module must be enabled.","affected":[{"package":{"name":"drupal/advanced_filesystem","ecosystem":"Packagist:https://packages.drupal.org/8","purl":"pkg:composer/drupal/advanced_filesystem?repository_url=https:%2F%2Fpackages.drupal.org%2F8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.28"}],"database_specific":{"constraint":"<1.0.28"}}],"database_specific":{"affected_versions":"<1.0.28","source":"https://github.com/DrupalSecurityTeam/drupal-advisory-database/blob/main/advisories/advanced_filesystem/DRUPAL-CONTRIB-2026-217.json"}}],"references":[{"type":"WEB","url":"https://www.drupal.org/sa-contrib-2026-217"}],"credits":[{"name":"Marcus Johansson (marcus_johansson)","contact":["https://www.drupal.org/u/marcus_johansson"]}]}