CVE-2016-6483: vBulletin

High severity, CVSS 8.6. EPSS: 11.9% chance of exploitation in the next 30 days.

The media-file upload feature in vBulletin before 3.8.7 Patch Level 6, 3.8.8 before Patch Level 2, 3.8.9 before Patch Level 1, 4.x before 4.2.2 Patch Level 6, 4.2.3 before Patch Level 2, 5.x before 5.2.0 Patch Level 3, 5.2.1 before Patch Level 1, and 5.2.2 before Patch Level 1 allows remote attackers to conduct SSRF attacks via a crafted URL that results in a Redirection HTTP status code.

Affected products

• vBulletin vBulletin: version 3.8.7 only; version 3.8.8 only; version 3.8.9 only; version 4.2.2 only; version 4.2.3 only; version 5.2.0 only; …

Published 2016-09-02. Last modified 2026-06-17.