cve/2020/CVE-2020-5809.md

### [CVE-2020-5809](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5809)
![](https://img.shields.io/static/v1?label=Product&message=Umbraco%20CMS&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Stored%20Cross-Site%20Scripting&color=brighgreen)

### Description

A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS.

### POC

#### Reference
- https://www.tenable.com/security/research/tra-2020-59
- https://www.tenable.com/security/research/tra-2020-59

#### Github
No PoCs found on GitHub currently.
Update Sat May 25 21:48:12 CEST 2024 2024-05-25 21:48:12 +02:00			`### [CVE-2020-5809](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5809)`
			`![](https://img.shields.io/static/v1?label=Product&message=Umbraco%20CMS&color=blue)`
			`![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)`
			`![](https://img.shields.io/static/v1?label=Vulnerability&message=Stored%20Cross-Site%20Scripting&color=brighgreen)`

			`### Description`

			`A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS.`

			`### POC`

			`#### Reference`
			`- https://www.tenable.com/security/research/tra-2020-59`
Update CVE sources 2024-06-09 00:33 2024-06-09 00:33:16 +00:00			`- https://www.tenable.com/security/research/tra-2020-59`
Update Sat May 25 21:48:12 CEST 2024 2024-05-25 21:48:12 +02:00
			`#### Github`
			`No PoCs found on GitHub currently.`