Invision Community (aka IPS Community Suite) before 4.6.0 allows eval-based PHP code injection by a moderator because the IPS\cms\modules\front\pages\_builder::previewBlock method interacts unsafely with the IPS\_Theme::runProcessFunction method.Referenceshttps://hackerone.com/reports/1092574https://invisioncommunity.com/features/security/http://seclists.org/fulldisclosure/2021/May/80http://packetstormsecurity.com/files/162868/IPS-Community-Suite-4.5.4.2-PHP-Code-Injection.htmlhttp://karmainsecurity.com/KIS-2021-04
