CVE-2021-4026
bookstack is vulnerable to Improper Access Control
4.3
MEDIUM
CVSS 3.1
EPSS 0.92%
Description
bookstack is vulnerable to Improper Access Control.
How to fix CVE-2021-4026
To remediate CVE-2021-4026, upgrade the affected package to a fixed version below.
- Packagist/ssddanbrown/bookstack—upgrade to 21.11.2 or later
Is CVE-2021-4026 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 21.11.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |