cve/2023/CVE-2023-1721.md

### [CVE-2023-1721](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1721)
![](https://img.shields.io/static/v1?label=Product&message=Yoga%20Class%20Registration%20System&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%201.0%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-434%20Unrestricted%20Upload%20of%20File%20with%20Dangerous%20Type&color=brighgreen)

### Description

Yoga Class Registration System version 1.0 allows an administrator to execute commands on the server. This is possible because the application does not correctly validate the thumbnails of the classes uploaded by the administrators.

### POC

#### Reference
- https://fluidattacks.com/advisories/blessd/

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