| タイトル | Krayin Krayin CRM ≤ 2.2.5 Broken Access Control |
|---|
| 説明 | Krayin CRM 2.2.5 contains an Insecure Direct Object Reference (IDOR) vulnerability in the email attachment download functionality. The vulnerability exists in the GET /admin/mail/attachment-download/{id} endpoint, where the application retrieves email attachments using a user-controlled numeric identifier without performing proper authorization checks. An authenticated low-privileged user can manipulate the attachment ID to access files belonging to other users, including attachments stored on the application's private filesystem. The issue is caused by missing object-level authorization validation, combined with insufficient route permission enforcement, allowing unauthorized disclosure of sensitive documents such as contracts, invoices, and confidential email attachments. Successful exploitation requires only a valid authenticated account and knowledge or enumeration of attachment identifiers. |
|---|
| ソース | ⚠️ https://github.com/carlosalbertotuma/advisory/blob/main/advisory-06-IDOR-Email-Attachment%20Download.md |
|---|
| ユーザー | bl4dsc4n (UID 94778) |
|---|
| 送信 | 2026年08月05日 16:06 (2 月 ago) |
|---|
| モデレーション | 2026年09月27日 06:10 (2 months later) |
|---|
| ステータス | 承諾済み |
|---|
| VulDBエントリ | 410814 [Krayin laravel-crm 迄 2.2.5 attachment-download Endpoint acl.php Storage::download id 特権昇格] |
|---|
| ポイント | 20 |
|---|