CVE-2005-4891: Simplemachines Simple Machine Forum

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Simple Machine Forum (SMF) versions 1.0.4 and earlier have an SQL injection vulnerability that allows remote attackers to inject arbitrary SQL statements.

Affected products

• Simplemachines Simple Machine Forum: up to and including 1.0.4

Published 2020-01-15. Last modified 2026-06-16.