Phlox com.phlox.simpleserver (aka Simple HTTP Server) 1.8 and com.phlox.simpleserver.plus (aka Simple HTTP Server PLUS) 1.8.1-plus have a hardcoded aKySWb2jjrr4dzkYXczKRt7K (AES) encryption key. An attacker with physical access to the application's source code or binary can extract this key & use it decrypt the TLS secret.

Phlox com.phlox.simpleserver.plus (aka Simple HTTP Server PLUS) 1.8.1-plus has an Android manifest file that contains an entry with the android:allowBackup attribute set to true. This could be leveraged by an attacker with physical access to the device.