CVEs-PoC/2021/CVE-2021-4411.md

### [CVE-2021-4411](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4411)
![](https://img.shields.io/static/v1?label=Product&message=WP%20EasyPay%20%E2%80%93%20Square%20for%20WordPress&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 WP EasyPay – Square for WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.2.0. This is due to missing or incorrect nonce validation on the wpep_download_transaction_in_excel() function. This makes it possible for unauthenticated attackers to trigger a transactions download 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