### [CVE-2021-3768](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3768)
![](https://img.shields.io/static/v1?label=Product&message=bookstackapp%2Fbookstack&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2021.08.2%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79%20Improper%20Neutralization%20of%20Input%20During%20Web%20Page%20Generation%20('Cross-site%20Scripting')&color=brighgreen)

### Description

bookstack is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

### POC

#### Reference
- https://huntr.dev/bounties/64a0229f-ff5e-4c64-b83e-9bfc0698a78e

#### Github
No PoCs found on GitHub currently.