### [CVE-2017-11507](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11507)
![](https://img.shields.io/static/v1?label=Product&message=Check_MK&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Stored%20and%20Reflected%20Cross%20Site%20Scripting%20(XSS)&color=brighgreen)

### Description

A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.2.8x prior to 1.2.8p25 and 1.4.0x prior to 1.4.0p9, allowing an unauthenticated attacker to inject arbitrary HTML or JavaScript via the output_format parameter, and the username parameter of failed HTTP basic authentication attempts, which is returned unencoded in an internal server error page.

### POC

#### Reference
- https://www.tenable.com/security/research/tra-2017-20

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