CVEs-PoC/2021/CVE-2021-4409.md

### [CVE-2021-4409](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4409)
![](https://img.shields.io/static/v1?label=Product&message=WooCommerce%20Etsy%20Integration&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=*%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-352%20Cross-Site%20Request%20Forgery%20(CSRF)&color=brightgreen)

### Description

The WooCommerce Etsy Integration plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.3.1. This is due to missing or incorrect nonce validation on the etcpf_delete_feed() function. This makes it possible for unauthenticated attackers to delete an export feed via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

### POC

#### Reference
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/

#### Github
- https://github.com/20142995/nuclei-templates