| Title | lsFusion 6.1 Arbitrary File Upload |
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| Description | Accessing the /uploadFile API invokes the handleRequest method in UploadFileRequestHandler. This method accepts an unvalidated sid parameter, which is directly appended to FileUtils.APP_UPLOAD_FOLDER_PATH. Additionally, there are no restrictions on the uploaded filename. When combined with directory traversal, this allows an attacker to upload JSP files to a web-accessible directory, leading to client-side file upload–based remote code execution (RCE). |
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| Source | ⚠️ https://github.com/lsfusion/platform/issues/1544 |
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| User | R1ckyZ (UID 92331) |
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| Submission | 11/05/2025 08:01 (6 months ago) |
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| Moderation | 11/16/2025 12:00 (11 days later) |
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| Status | Accepted |
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| VulDB entry | 332597 [lsfusion platform up to 6.1 UploadFileRequestHandler.java UploadFileRequestHandler sid path traversal] |
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| Points | 20 |
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