CVE-2023-43357: GitHub - sromanhu/CVE-2023-43357-CMSmadesimple-Stored-XSS---Shortcut: Cross Site Scripting vulnerability in CMSmadesimple v.2.2.18 allows a local attacker to execute arbitrary code via a crafted scrip

CMSmadesimple Stored XSS v2.2.18****Author: (Sergio)

Description: Cross Site Scripting vulnerability in CMSmadesimple v.2.2.18 allows a local attacker to execute arbitrary code via a crafted script to the Title in the My Preferences - Manage Shortcuts

Attack Vectors: Scripting A vulnerability in the sanitization of the entry in the Title of “My Preferences - Manage Shortcuts” allows injecting JavaScript code that will be executed when the user accesses the web page.

POC:

When logging into the panel, we will go to the “My Preferences - Manage Shortcuts” section off General Menu.

We edit that Content - News Menu with the payload that we have created and see that we can inject arbitrary Javascript code in the Title field.

XSS Payload:

'"><svg/onload=alert(‘Title’)>

In the following image you can see the embedded code that executes the payload in the main web.

Additional Information:

http://www.cmsmadesimple.org/

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