CVE-2023-43339 PoC — CMS Made Simple 跨站脚本漏洞

Source

https://github.com/sromanhu/CVE-2023-43339-CMSmadesimple-Reflected-XSS---Installation

Associated Vulnerability

Title:CMS Made Simple 跨站脚本漏洞 (CVE-2023-43339)
Description:CMS Made Simple（CMSMS）是Cmsms团队的一套开源的内容管理系统(CMS)。该系统支持基于角色的权限管理系统、基于向导的安装与更新机制、智能缓存机制等。 CMS Made Simple v.2.2.18版本存在安全漏洞，该漏洞源于允许本地攻击者通过精心设计的有效负载注入数据库名称、数据库用户或数据库端口组件来执行任意代码。

Description

CMSmadesimple 2.2.18 is affected by a Cross-Site Scripting (XSS) vulnerability that allows attackers to execute arbitrary code via a crafted payload in the installation process.

Readme

# Cmsmadesimple CMS Reflected XSS v2.2.18

## Author: (Sergio)

**Description:** Multiple Cross-Site Scripting (XSS) vulnerabilities in installation of  cmsmadesimple v.2.2.18 allows a local attacker to execute arbitrary web scripts via a crafted payload injected into the Database Name, DataBase User or Database Port.

**Attack Vectors:** A vulnerability in the installation sanitation in the Database name, user name and port allows JavaScript code to be injected.

---

### POC:


During the installation process we enter the XSS payload in any of the 3 fields and when we click on next, we will obtain the XSS pop-up

### XSS Payload:

```js
"' on focus="alert(1)" autofocus="
```


In the following image you can see the embedded code that executes the payload in the instalaltion process.
![imagen](https://github.com/sromanhu/Cmsmadesimple-CMS-Stored-XSS/assets/87250597/5858abd6-73ad-4e76-881f-7b4efe090c6e)


![imagen](https://github.com/sromanhu/Cmsmadesimple-CMS-Stored-XSS/assets/87250597/426542dc-cebc-4c5f-98a7-695837889d34)


![imagen](https://github.com/sromanhu/Cmsmadesimple-CMS-Stored-XSS/assets/87250597/fef08e57-214e-4357-b8f0-eec40b12fce5)


![imagen](https://github.com/sromanhu/Cmsmadesimple-CMS-Stored-XSS/assets/87250597/7825fac8-bd75-40d7-aee4-530ebd9e3b5f)

![image](https://github.com/sromanhu/Cmsmadesimple-CMS-Reflected-XSS/assets/87250597/7806fca2-d08c-4a0b-9b30-e1e7b092a195)

![imagen](https://github.com/sromanhu/Cmsmadesimple-CMS-Stored-XSS/assets/87250597/8d580af3-2e89-4f17-a3a6-9096fec22b4c)



</br>

### Additional Information:

http://www.cmsmadesimple.org/

https://owasp.org/Top10/es/A03_2021-Injection/

File Snapshot


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