CVE-2006-4273

vBulletin 3.5.4 and 3.6.0 - Cross-Site Scripting via PDF Attachment

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-4273. PoCs published by imei.

AI-analyzed exploit summary This exploit demonstrates a cross-site scripting (XSS) vulnerability in vBulletin 3.0.14 by injecting arbitrary JavaScript code via the `_tmp[csscolors]` parameter in the `global.php` file. The payload bypasses input sanitization to execute script code in the context of the affected site.

Description

Cross-site scripting (XSS) vulnerability in Jelsoft vBulletin 3.5.4 and 3.6.0 allows remote attackers to inject arbitrary web script or HTML by uploading an attachment with a .pdf extension that contains JavaScript, which is processed as script by Microsoft Internet Explorer 6.

Exploits (1)

exploitdb WORKING POC VERIFIED
by imei · textwebappsphp
https://www.exploit-db.com/exploits/28342

This exploit demonstrates a cross-site scripting (XSS) vulnerability in vBulletin 3.0.14 by injecting arbitrary JavaScript code via the `_tmp[csscolors]` parameter in the `global.php` file. The payload bypasses input sanitization to execute script code in the context of the affected site.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: vBulletin 3.0.14 (and prior versions)
No auth needed
Prerequisites: Access to a vulnerable vBulletin instance · User interaction to trigger the XSS payload
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/27778
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/442488/100/200/threaded
Third Party Advisory mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2006-08/0074.html
Exploit mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2006-08/0082.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/19334
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/28239

Scores

EPSS 0.0210
EPSS Percentile 79.3%

Details

Status published
Products (2)
jelsoft/vbulletin 3.5.4
jelsoft/vbulletin 3.6.0
Published Aug 21, 2006
Tracked Since Feb 18, 2026