Headline
CVE-2021-42867: CVE-2021-42967: HTMLy 2.8.1 XSS vulnerability
A Cross Site Scripting (XSS) vulnerability exists in DanPros htmly 2.8.1 via the Description field in (1) admin/config, and (2) index.php pages.
Vulnerabilty found in HTMLy v2.8.1 by “HAXSS” a Reinforcement Learning Agent for Cross Site Scripting (XSS) testing.
Description:
The “Description” field of the “/admin/config” page of htmly 2.8.1 is subject to a Cross Site Scripting (XSS) vulnerability. This allows malicious users to send an authenticated POST HTTP request to inject JavaScript or HTML.
Known Payloads:
- </body><body onmouseover=alert(1455055833)></body>
Steps to Reproduce:
1. Log into the admin pannel (‘/login’).
2. Use the dashboard to navigate to the config page (‘/admin/config’)
3. Edit the “Description” field on the page to a malicious payload
4. Save the settings
5. Navigate to the home page ‘/’ and the vulnerability is shown
