cve/2017/CVE-2017-9442.md

### [CVE-2017-9442](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9442)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

** DISPUTED ** BigTree CMS through 4.2.18 allows remote authenticated users to execute arbitrary code by uploading a crafted package containing a PHP web shell, related to extraction of a ZIP archive to filename patterns such as cache/package/xxx/yyy.php. This issue exists in core\admin\modules\developer\extensions\install\unpack.php and core\admin\modules\developer\packages\install\unpack.php. NOTE: the vendor states "You must implicitly trust any package or extension you install as they all have the ability to write PHP files."

### POC

#### Reference
- https://github.com/bigtreecms/BigTree-CMS/issues/291

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