CVE-2021-3987
Improper Access Control in janeczku/calibre-web
5.4
MEDIUM
CVSS 3.1
EPSS 0.11%
Description
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.
How to fix CVE-2021-3987
To remediate CVE-2021-3987, upgrade the affected package to a fixed version below.
- —upgrade to 0.6.15 or later
Is CVE-2021-3987 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.6.15
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |