### [CVE-2021-4026](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4026)
![](https://img.shields.io/static/v1?label=Product&message=bookstackapp%2Fbookstack&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=unspecified%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-284%20Improper%20Access%20Control&color=brightgreen)

### Description

bookstack is vulnerable to Improper Access Control

### POC

#### Reference
- https://huntr.dev/bounties/c6dfa80d-43e6-4b49-95af-cc031bb66b1d

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ChamalBandara/CVEs
- https://github.com/Haxatron/Haxatron