CVE-2016-6174: Invisioncommunity Invision Power Board

High severity, CVSS 8.1. EPSS: 12.3% chance of exploitation in the next 30 days.

applications/core/modules/front/system/content.php in Invision Power Services IPS Community Suite (aka Invision Power Board, IPB, or Power Board) before 4.1.13, when used with PHP before 5.4.24 or 5.5.x before 5.5.8, allows remote attackers to execute arbitrary code via the content_class parameter.

Affected products

• Invisioncommunity Invision Power Board: up to and including 4.1.12.3
• PHP PHP: up to and including 5.4.23; version 5.5.0 only; version 5.5.1 only; version 5.5.2 only; version 5.5.3 only; version 5.5.4 only; …

Published 2016-07-12. Last modified 2026-06-17.