CVE-2004-1996: Simple Machines Smf

Medium severity, CVSS 4.3. EPSS: 1.7% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in Simple Machines Forum (SMF) 1.0 allows remote attackers to inject arbitrary web script via the size tag.

Affected products

• Simple Machines Smf: version 1.0_beta4.1 only; version 1.0_beta4p only; version 1.0_beta5p only

Published 2004-05-05. Last modified 2026-06-16.