{"id":"DRUPAL-CORE-2022-014","details":"*Updated 2022-07-20 19:45 UTC to indicate that this only affects Apache web servers.*\n\nDrupal core sanitizes filenames with dangerous extensions upon upload (reference: [SA-CORE-2020-012](https://www.drupal.org/sa-core-2020-012)) and strips leading and trailing dots from filenames to prevent uploading server configuration files (reference: [SA-CORE-2019-010](https://www.drupal.org/sa-core-2019-010)).\n\nHowever, the protections for these two vulnerabilities previously did not work correctly together. As a result, if the site were configured to allow the upload of files with an `htaccess` extension, these files' filenames would not be properly sanitized. This could allow bypassing the protections provided by Drupal core's default `.htaccess` files and possible remote code execution on Apache web servers.\n\nThis issue is mitigated by the fact that it requires a field administrator to explicitly configure a file field to allow `htaccess` as an extension (a restricted permission), or a contributed module or custom code that overrides allowed file uploads.","aliases":["BIT-drupal-2022-25277","CVE-2022-25277","GHSA-6955-67hm-vjjq"],"modified":"2025-12-10T23:41:18.497613Z","published":"2022-07-20T15:40:05Z","references":[{"type":"WEB","url":"https://www.drupal.org/sa-core-2022-014"}],"affected":[{"package":{"name":"drupal/core","ecosystem":"Packagist","purl":"pkg:composer/drupal/core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"9.3.19"}],"database_specific":{"constraint":"\u003e= 8.0.0 \u003c9.3.19"}},{"type":"ECOSYSTEM","events":[{"introduced":"9.4.0"},{"fixed":"9.4.3"}],"database_specific":{"constraint":"\u003e= 9.4.0 \u003c9.4.3"}}],"versions":["8.0.0","8.0.1","8.0.2","8.0.3","8.0.4","8.0.5","8.0.6","8.1.0","8.1.0-beta1","8.1.0-beta2","8.1.0-rc1","8.1.1","8.1.10","8.1.2","8.1.3","8.1.4","8.1.5","8.1.6","8.1.7","8.1.8","8.1.9","8.2.0","8.2.0-beta1","8.2.0-beta2","8.2.0-beta3","8.2.0-rc1","8.2.0-rc2","8.2.1","8.2.2","8.2.3","8.2.4","8.2.5","8.2.6","8.2.7","8.2.8","8.3.0","8.3.0-alpha1","8.3.0-beta1","8.3.0-rc1","8.3.0-rc2","8.3.1","8.3.2","8.3.3","8.3.4","8.3.5","8.3.6","8.3.7","8.3.8","8.3.9","8.4.0","8.4.0-alpha1","8.4.0-beta1","8.4.0-rc1","8.4.0-rc2","8.4.1","8.4.2","8.4.3","8.4.4","8.4.5","8.4.6","8.4.7","8.4.8","8.5.0","8.5.0-alpha1","8.5.0-beta1","8.5.0-rc1","8.5.1","8.5.10","8.5.11","8.5.12","8.5.13","8.5.14","8.5.15","8.5.2","8.5.3","8.5.4","8.5.5","8.5.6","8.5.7","8.5.8","8.5.9","8.6.0","8.6.0-alpha1","8.6.0-beta1","8.6.0-beta2","8.6.0-rc1","8.6.1","8.6.10","8.6.11","8.6.12","8.6.13","8.6.14","8.6.15","8.6.16","8.6.17","8.6.18","8.6.2","8.6.3","8.6.4","8.6.5","8.6.6","8.6.7","8.6.8","8.6.9","8.7.0","8.7.0-alpha1","8.7.0-alpha2","8.7.0-beta1","8.7.0-beta2","8.7.0-rc1","8.7.1","8.7.10","8.7.11","8.7.12","8.7.13","8.7.14","8.7.2","8.7.3","8.7.4","8.7.5","8.7.6","8.7.7","8.7.8","8.7.9","8.8.0","8.8.0-alpha1","8.8.0-beta1","8.8.0-rc1","8.8.1","8.8.10","8.8.11","8.8.12","8.8.2","8.8.3","8.8.4","8.8.5","8.8.6","8.8.7","8.8.8","8.8.9","8.9.0","8.9.0-beta1","8.9.0-beta2","8.9.0-beta3","8.9.0-rc1","8.9.1","8.9.10","8.9.11","8.9.12","8.9.13","8.9.14","8.9.15","8.9.16","8.9.17","8.9.18","8.9.19","8.9.2","8.9.20","8.9.3","8.9.4","8.9.5","8.9.6","8.9.7","8.9.8","8.9.9","9.0.0","9.0.0-alpha1","9.0.0-alpha2","9.0.0-beta1","9.0.0-beta2","9.0.0-beta3","9.0.0-rc1","9.0.1","9.0.10","9.0.11","9.0.12","9.0.13","9.0.14","9.0.2","9.0.3","9.0.4","9.0.5","9.0.6","9.0.7","9.0.8","9.0.9","9.1.0","9.1.0-alpha1","9.1.0-beta1","9.1.0-rc1","9.1.0-rc2","9.1.0-rc3","9.1.1","9.1.10","9.1.11","9.1.12","9.1.13","9.1.14","9.1.15","9.1.2","9.1.3","9.1.4","9.1.5","9.1.6","9.1.7","9.1.8","9.1.9","9.2.0","9.2.0-alpha1","9.2.0-beta1","9.2.0-beta2","9.2.0-beta3","9.2.0-rc1","9.2.1","9.2.10","9.2.11","9.2.12","9.2.13","9.2.14","9.2.15","9.2.16","9.2.17","9.2.18","9.2.19","9.2.2","9.2.20","9.2.21","9.2.3","9.2.4","9.2.5","9.2.6","9.2.7","9.2.8","9.2.9","9.3.0","9.3.0-alpha1","9.3.0-beta1","9.3.0-beta2","9.3.0-beta3","9.3.0-rc1","9.3.1","9.3.10","9.3.11","9.3.12","9.3.13","9.3.14","9.3.15","9.3.16","9.3.17","9.3.18","9.3.2","9.3.3","9.3.4","9.3.5","9.3.6","9.3.7","9.3.8","9.3.9","9.4.0","9.4.1","9.4.2"],"database_specific":{"affected_versions":"\u003e= 8.0.0 \u003c9.3.19 || \u003e= 9.4.0 \u003c9.4.3","source":"https://github.com/DrupalSecurityTeam/drupal-advisory-database/blob/main/advisories/core/DRUPAL-CORE-2022-014.json"}}],"schema_version":"1.7.3","credits":[{"name":"Elar Lang","contact":["https://www.drupal.org/user/3583903"]}]}