CVE-2026-50282: Craftcms/cms Remote Code Execution Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3w32-23wj-rxg3",
  "modified" : "2026-07-02T20:03:58Z",
  "published" : "2026-07-02T20:03:58Z",
  "aliases" : [ "CVE-2026-50282" ],
  "summary" : "Craft CMS Vulnerable to Unauthorized Deletion of Destination Folders During Forced Moves",
  "details" : "We have identified an authorization issue in Craft CMS where a forced folder move can delete a conflicting destination folder without destination delete permission.\n\n### Description\n\nCraft CMS’s `craft\\\\controllers\\\\AssetsController::actionMoveFolder()` supports moving an asset folder into a destination parent folder. If a folder with the same name already exists at the destination, the action can be called with `force=true` to overwrite the destination.\n\nThe permission checks for this action allow:\n\n- `deleteAssets:<sourceVolumeUid>` for the folder being moved  \n- `createFolders:<destVolumeUid>` for the destination parent folder  \n- `saveAssets:<destVolumeUid>` for the destination parent folder\n\nThe action does not require `deleteAssets` on the destination volume or destination conflict folder. When `force=true` and a name conflict exists, the code deletes the destination folder to resolve the conflict.\n\n```php\n$this->requireVolumePermissionByFolder('deleteAssets', $folderToMove);\n$this->requireVolumePermissionByFolder('createFolders', $destinationFolder);\n$this->requireVolumePermissionByFolder('saveAssets', $destinationFolder);\n```\n\n[*src/controllers/AssetsController.php:L751-L753*](https://github.com/craftcms/cms/blob/5.x/src/controllers/AssetsController.php#L751-L753)\n\nIndexed destination conflicts are deleted via the Assets service:\n\n```php\n$assets->deleteFoldersByIds($existingFolder->id);\n```\n\n[*src/controllers/AssetsController.php:L798-L798*](https://github.com/craftcms/cms/blob/5.x/src/controllers/AssetsController.php#L798-L798)\n\nUnindexed destination conflicts are deleted directly in the volume filesystem:\n\n```php\n$targetVolume->deleteDirectory(rtrim($destinationFolder->path, '/') . '/' . $folderToMove->name);\n```\n\n[*src/controllers/AssetsController.php:L815*](https://github.com/craftcms/cms/blob/5.x/src/controllers/AssetsController.php#L815)\n\n### Impact\n\nA user who cannot delete assets in a destination volume can still delete a destination folder and its contents by triggering a forced move into a conflicting name. This can cause asset loss, broken references in entries and fields that point to deleted assets, and operational disruption.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "craftcms/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.0.0-RC1"
      }, {
        "fixed" : "5.9.21"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "craftcms/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0-RC1"
      }, {
        "fixed" : "4.17.14"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/craftcms/cms/security/advisories/GHSA-3w32-23wj-rxg3"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-50282"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/craftcms/cms/commit/2c2579c7f1030872423f268d0c8b48377101961d"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/craftcms/cms"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-02T20:03:58Z",
    "nvd_published_at" : "2026-07-02T17:17:01Z"
  }
}