Cross-site scripting (XSS) vulnerability in Invision Power Board 2.3.1 and earlier allows remote attackers to inject arbitrary web script or HTML via an IFRAME tag in the signature.

Invision Power Board (IPB) 2.1.7 and earlier allows remote restricted administrators to inject arbitrary web script or HTML, or execute arbitrary SQL commands, via a forum description that contains a crafted image with PHP code, which is executed when the user visits the "Manage Forums" link in the Admin control panel.

Cross-site scripting (XSS) vulnerability in actionadmin/member.php in Invision Power Board (IPB) 2.1.7 and earlier allows remote authenticated users to inject arbitrary web script or HTML via a reference to a script in the avatar setting, which can be leveraged for a cross-site request forgery (CSRF) attack involving forced SQL execution by an admin.

Unspecified vulnerability in functopicthreaded.php (aka threaded view mode) in Invision Power Board (IPB) before 2.1.7 21013.60810.s allows remote attackers to "access posts outside the topic."