cve/2023/CVE-2023-5560.md

### [CVE-2023-5560](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5560)
![](https://img.shields.io/static/v1?label=Product&message=WP-UserOnline&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=0%3C%202.88.3%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79%20Cross-Site%20Scripting%20(XSS)&color=brighgreen)

### Description

The WP-UserOnline WordPress plugin before 2.88.3 does not sanitise and escape the X-Forwarded-For header before outputting its content on the page, which allows unauthenticated users to perform Cross-Site Scripting attacks.

### POC

#### Reference
- https://wpscan.com/vulnerability/55d23184-fc5a-4090-b079-142407b59b05

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