cve/2025/CVE-2025-56236.md

### [CVE-2025-56236](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-56236)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

FormCms v0.5.5 contains a stored cross-site scripting (XSS) vulnerability in the avatar upload feature. Authenticated users can upload .html files containing malicious JavaScript, which are accessible via a public URL. When a privileged user accesses the file, the script executes in their browser context.

### POC

#### Reference
- https://github.com/FormCms/FormCms/issues/27

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds