Tiki through 27.0 allows users who have certain permissions to insert a "Modules" (aka tiki-adminmodules.php) stored XSS payload in the Name.
Tiki through 27.0 allows users who have certain permissions to insert a "Create/Edit External Wiki" stored XSS payload in the Name.
Tiki through 27.0 allows users who have certain permissions to insert a "Create a Wiki Pages" stored XSS payload in the description.
Tiki through 27.0 allows users who have certain permissions to insert a "Create/Edit External Wiki" stored XSS payload in the Index.