| Название | Bytedesk <=1.3.9 Unrestricted Upload of File with Dangerous Type (CWE-434) |
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| Описание | The authenticated file upload endpoint routes SVG files through UploadWatermarkService.addWatermarkToFile(), which writes the file to disk without stripping embedded JavaScript. The POC uploads an SVG containing <script>alert(...)></script> to POST /api/v1/upload/file; the server returns HTTP 200 and a public URL. Visiting the URL triggers Stored XSS, bypassing watermark processing without sanitization. |
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| Источник | ⚠️ https://github.com/Bytedesk/bytedesk/issues/19 |
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| Пользователь | ZAST.AI (UID 87884) |
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| Представление | 26.02.2026 07:03 (5 месяцы назад) |
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| Модерация | 07.03.2026 21:23 (10 days later) |
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| Статус | принято |
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| Запись VulDB | 349727 [Bytedesk до 1.3.9 SVG File UploadRestService.java handleFileUpload эскалация привилегий] |
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| Баллы | 20 |
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