Confidentiality
Read Application Data
An adversary that gains access to a resource exposed to a wrong sphere could potentially retrieve private data from that resource, thus breaking the intended confidentiality of that data.
Integrity
Modify Application Data
An adversary that gains access to a resource exposed to a wrong sphere could potentially modify data held within that resource, thus breaking the intended integrity of that data and causing the system relying on that resource to make unintended decisions.
Other
Varies by Context
The consequences may vary widely depending on how the product uses the affected resource.