| Title | diem-project diem 116974edfb9a5b8bd69cb13586dc62bcdbb485ad Code Injection |
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| Description | The front-end widget editor in `dmFrontPlugin/modules/dmWidget` is accessible to users with the `widget_edit` or `widget_edit_fast` credential. Its media form, `dmFrontPlugin/lib/dmWidget/media/dmWidgetContentBaseMediaForm.php`, validates uploaded files with `sfValidatorFile` without an extension or MIME allowlist and creates a `DmMedia` item in the `widget` folder. `dmCorePlugin/lib/model/doctrine/PluginDmMedia.class.php` retains the submitted extension, saves the file below `sf_upload_dir`, and exposes it through `sf_upload_dir_name`. A content editor can upload `payload.php`, which is served as `/uploads/widget/payload.php`; deployments whose PHP handler executes PHP files in the web-root upload directory are vulnerable to remote code execution as the web-server account. |
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| Source | ⚠️ https://github.com/diem-project/diem/issues/448 |
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| User | milocat (UID 99840) |
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| Submission | 07/17/2026 15:22 (1 month ago) |
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| Moderation | 08/30/2026 18:38 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 397174 [diem-project diem up to 5.1.3 Widget Editor dmWidgetContentBaseMediaForm.php unrestricted upload] |
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| Points | 20 |
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