### [CVE-2021-28145](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28145) ![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen) ### Description Concrete CMS (formerly concrete5) before 8.5.5 allows remote authenticated users to conduct XSS attacks via a crafted survey block. This requires at least Editor privileges. ### POC #### Reference No PoCs from references. #### Github - https://github.com/S1lkys/CVE-2021-40101