Affects Version/s: 6.2.X EE, 7.0.0 M3
If you have a site and you configure it to have only a few languages available, then the Web Form portlet doesn't follow this setup with its own language selection.
You might be able to select a language which is not made available for the site.
1. Set in portal-ext:
2. Add a site, page to this site and the Web Form Portlet there
3. Go to Site Administration -> Display Settings and select only a few Languages for the Current Language
4. Go to the Web Form portlet's configuration section and see that all the portal's available languages are visible
Only the selected few languages are visible which you set to the site.
Reproducible on 6.2.x