CVE-2009-4109: Dnnsoftware DotNetNuke

Medium severity, CVSS 5.0. EPSS: 1.2% chance of exploitation in the next 30 days.

The install wizard in DotNetNuke 4.0 through 5.1.4 does not prevent anonymous users from accessing functionality related to determination of the need for an upgrade, which allows remote attackers to access version information and possibly other sensitive information.

Affected products

• Dnnsoftware DotNetNuke: version 4.0 only; version 4.3.5 only; version 4.4.1 only; version 4.5.2 only; version 4.5.4 only; version 4.5.5 only; …

Published 2009-11-29. Last modified 2026-06-16.