An improper access control vulnerability exists in janeczku/calibre-web. The affected version allows users without public shelf permissions to create public shelves. The vulnerability is due to the `create_shelf` method in `shelf.py` not verifying if the user has the necessary permissions to create a public shelf. This issue can lead to unauthorized actions being performed by users.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| calibreweb(PyPI) | 0 | 0.6.15 | N/A |
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