| Title | LearnHouse learnhouse 98dfad76aad70711a8113f6c1fdabfccf10509ca Client-Side Enforcement of Server-Side Security |
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| Description | Certain LearnHouse file upload endpoints enforce file-type checks **only on the client side**. An attacker can upload a benign image to pass client-side checks, intercept the multipart request, and replace the uploaded content with any payload (e.g., SVG, `.py`, `.php`). This allows Stored XSS (via SVG) or arbitrary file storage that may lead to RCE. Affects all versions up to commit `98dfad7`. |
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| Source | ⚠️ https://gist.github.com/KhanMarshaI/ef07d20eb1cbe30c71722fbded7cc056 |
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| User | KhanMarshal (UID 89610) |
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| Submission | 10/13/2025 11:57 (6 months ago) |
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| Moderation | 10/26/2025 17:01 (13 days later) |
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| Status | Accepted |
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| VulDB entry | 329940 [LearnHouse up to 98dfad76aad70711a8113f6c1fdabfccf10509ca Course Thumbnail /api/v1/courses/ thumbnail unrestricted upload] |
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| Points | 20 |
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