CVEs-PoC/2021/CVE-2021-22223.md

### [CVE-2021-22223](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22223)
![](https://img.shields.io/static/v1?label=Product&message=GitLab&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D11.9%2C%20%3C13.11.6%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D13.12%2C%20%3C13.12.6%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D14.0%2C%20%3C14.0.2%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Improper%20neutralization%20of%20input%20during%20web%20page%20generation%20('cross-site%20scripting')%20in%20GitLab&color=brightgreen)

### Description

Client-Side code injection through Feature Flag name in GitLab CE/EE starting with 11.9 allows a specially crafted feature flag name to PUT requests on behalf of other users via clicking on a link

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/n0-traces/cve_monitor