CVE-2011-4173: Cross-site request forgery (CSRF) vulnerability in Simple Machines Forum (SMF) 2.x before 2.0.1 allows remo...

Security readout for executives and security teams

This issue affects Simple Machines Forum 2.x versions before 2.0.1. A malicious site or content could trick an authenticated administrator or moderator into performing unwanted forum actions through a CSRF weakness involving image-file vectors. Business risk depends on whether an organization still runs old SMF forums with privileged users active. Exposure is most likely on legacy Simple Machines Forum 2.x deployments older than 2.0.1, especially where administrators or moderators use active authenticated sessions. The bundle does not identify hosted services, plugins, CPEs, or broader product lines. Treat this as a legacy exposure cleanup item unless the organization still operates old SMF forums. If any affected forum remains internet-facing or used by privileged moderators, prioritize upgrade because compromise of admin actions can affect forum integrity and user trust. Mitigation focus: Inventory public and internal SMF forum instances and record exact versions.; Upgrade affected SMF 2.x installations to 2.0.1 or later, where applicable.; Review the Simple Machines advisory before changing unsupported legacy branches..

Prepared

Jun 27, 2026, 17:48 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.