Flat Nuke 3.1.2 - Cross-site Scripting

Overview #

A Cross-site Scripting (XSS) vulnerability exists in Flat Nuke version 3.1.2. The vulnerability allows remote attackers to inject arbitrary web script or HTML.

Vulnerability Details #

Affected Versions: 3.1.2 and earlier

Root Cause: Insufficient input validation and output encoding allows attackers to inject malicious scripts.

Exploitation Requirements #

• No authentication required
• Victim must visit a crafted URL or page

Impact #

Remote attackers can exploit this vulnerability to:

• Steal user session cookies
• Perform actions on behalf of victims
• Redirect users to malicious websites
• Deface web pages

Proof of Concept #

Details available upon request.

Solution #

Upgrade to a patched version of Flat Nuke that includes proper input sanitization and output encoding.

References #

• Vendor notification sent

Timeline:

• [2014-01-01] - Discovered

Credits: Omar Kurt