CVE-2005-2814

FlatNuke 2.5.6 - Cross-Site Scripting via usr Parameter in vis_reg Operation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2005-2814. PoCs published by rgod.

AI-analyzed exploit summary This exploit demonstrates a cross-site scripting (XSS) vulnerability in FlatNuke by injecting a script tag via the 'usr' parameter in the URL. The PoC triggers an alert dialog, proving arbitrary script execution in the context of the affected site.

Description

Cross-site scripting (XSS) vulnerability in FlatNuke 2.5.6 allows remote attackers to inject arbitrary web script or HTML via the usr parameter in a vis_reg operation to index.php.

Exploits (1)

exploitdb WORKING POC VERIFIED
by rgod · textwebappsphp
https://www.exploit-db.com/exploits/26215

This exploit demonstrates a cross-site scripting (XSS) vulnerability in FlatNuke by injecting a script tag via the 'usr' parameter in the URL. The PoC triggers an alert dialog, proving arbitrary script execution in the context of the affected site.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: FlatNuke (version not specified)
No auth needed
Prerequisites: A vulnerable FlatNuke installation · User interaction to visit the crafted URL
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/22101
Exploit vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1014824
Exploit mailing-list x_refsource_bugtraq
http://seclists.org/lists/bugtraq/2005/Aug/0440.html
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/14704

Scores

EPSS 0.0173
EPSS Percentile 74.6%

Details

Status published
Products (1)
flatnuke/flatnuke 2.5.6
Published Sep 07, 2005
Tracked Since Feb 18, 2026