CVE-2013-4465: Simplemachines Simple Machines Forum

Medium severity, CVSS 4.6. EPSS: 2.4% chance of exploitation in the next 30 days.

Unrestricted file upload vulnerability in the avatar upload functionality in Simple Machines Forum before 2.0.6 and 2.1 allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in an unspecified directory.

Affected products

• Simplemachines Simple Machines Forum: up to and including 2.0.5; version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; …

Published 2013-10-25. Last modified 2026-06-16.