[JustMadMike]

They have responded on twitter to someone linking to this post

@danielhepper This was reported back in May and was since resolved. If you have any concerns please contact us at [e-mail].[1]

Maybe they fixed another security issue as they never inquired about the security hole you found. Which you suggest is still present.

[1] https://twitter.com/Nexmo/status/624582630126813184

[sebiw]

Don't know why they are issuing such a statement. As of right now it clearly isn't fixed.