cve/2023/CVE-2023-44763.md

### [CVE-2023-44763](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-44763)
![](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 ** Concrete CMS v9.2.1 is affected by an Arbitrary File Upload vulnerability via a Thumbnail file upload, which allows Cross-Site Scripting (XSS). NOTE: the vendor's position is that a customer is supposed to know that "pdf" should be excluded from the allowed file types, even though pdf is one of the allowed file types in the default configuration.

### POC

#### Reference
- https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/sromanhu/CVE-2023-44763_ConcreteCMS-Arbitrary-file-upload-Thumbnail