Weight Wellness Android App Fails to Validate SSL Certificates

Background

The Weight Wellness Android app has a serious security problem--it does not properly protect network traffic, exposing confidential data.

This practice may be illegal in the USA. Two American companies were sanctioned by the FTC in 2014 for making this same error:

FTC Final Orders with Fandango and Credit Karma Provide Guidance on Mobile App Security

Testing Method

I used an Android emulator connected to the Burp proxy.

Here's the app I tested:

Sending personal data which should be encrypted:

Harvesting the data from Burp via MITM attack:

Notification

I sent this email on 9-18-2025:


Posted 9-18-2025 by Sam Bowne