CVE-2006-4273: Jelsoft vBulletin

Medium severity, CVSS 6.8. EPSS: 2.2% chance of exploitation in the next 30 days.

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.

Affected products

• Jelsoft vBulletin: version 3.5.4 only; version 3.6.0 only

Published 2006-08-21. Last modified 2026-06-16.