| Titre | Bytedesk <=1.3.9 Unrestricted Upload of File with Dangerous Type (CWE-434) |
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| Description | The authenticated endpoint POST /api/v1/upload/file accepts SVG files with embedded <script> tags. Although isAllowedFileType() permits image/svg+xml, the server stores the file without sanitizing its contents. An attacker with a valid token uploads a malicious SVG containing JavaScript; the returned fileUrl serves the file directly. When a victim visits the URL, the browser executes the script, resulting in Stored XSS. |
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| La source | ⚠️ https://github.com/Bytedesk/bytedesk/issues/18 |
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| Utilisateur | ZAST.AI (UID 87884) |
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| Soumission | 26/02/2026 06:54 (il y a 8 mois) |
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| Modérer | 07/03/2026 21:23 (10 days later) |
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| Statut | Accepté |
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| Entrée VulDB | 349726 [Bytedesk jusqu’à 1.3.9 SVG File UploadRestController.java uploadFile élévation de privilèges] |
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| Points | 20 |
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