cve/2019/CVE-2019-9842.md

### [CVE-2019-9842](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9842)
![](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

madskristensen MiniBlog through 2018-05-18 allows remote attackers to execute arbitrary ASPX code via an IMG element with a data: URL, because SaveFilesToDisk in app_code/handlers/PostHandler.cs writes a decoded base64 string to a file without validating the extension.

### POC

#### Reference
- https://rastating.github.io/miniblog-remote-code-execution/

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