cve/2023/CVE-2023-6621.md

### [CVE-2023-6621](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6621)
![](https://img.shields.io/static/v1?label=Product&message=POST%20SMTP&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=0%3C%202.8.7%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79%20Cross-Site%20Scripting%20(XSS)&color=brighgreen)

### Description

The POST SMTP WordPress plugin before 2.8.7 does not sanitise and escape the msg parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

### POC

#### Reference
- https://wpscan.com/vulnerability/b49ca336-5bc2-4d72-a9a5-b8c020057928

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds