CVEs-PoC/2020/CVE-2020-8181.md

### [CVE-2020-8181](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8181)
![](https://img.shields.io/static/v1?label=Product&message=Nextcloud%20Contact&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Business%20Logic%20Errors%20(CWE-840)&color=brighgreen)

### Description

A missing file type check in Nextcloud Contacts 3.2.0 allowed a malicious user to upload any file as avatars.

### POC

#### Reference
- https://hackerone.com/reports/808287

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