### [CVE-2019-15617](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15617)
![](https://img.shields.io/static/v1?label=Product&message=Nextcloud%20Server&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Improper%20Authentication%20-%20Generic%20(CWE-287)&color=brighgreen)

### Description

A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login.

### POC

#### Reference
- https://hackerone.com/reports/722748

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