cve/2023/CVE-2023-0340.md

### [CVE-2023-0340](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0340)
![](https://img.shields.io/static/v1?label=Product&message=Custom%20Content%20Shortcode&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-22%20Improper%20Limitation%20of%20a%20Pathname%20to%20a%20Restricted%20Directory%20('Path%20Traversal')&color=brighgreen)

### Description

The Custom Content Shortcode WordPress plugin through 4.0.2 does not validate one of its shortcode attribute, which could allow users with a contributor role and above to include arbitrary files via a traversal attack. This could also allow them to read non PHP files and retrieve their content. RCE could also be achieved if the attacker manage to upload a malicious image containing PHP code, and then include it via the affected attribute, on a default WP install, authors could easily achieve that given that they have the upload_file capability.

### POC

#### Reference
- https://wpscan.com/vulnerability/71956598-90aa-4557-947a-c4716674543d

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