From Customer Orders to Internal Logistics: How a Single API Exposed an Entire Commerce Operation

A multi-million dollar omni-channel commerce platform serving customers across e-commerce, retail stores, warehouse operations, and logistics infrastructure was found exposing highly sensitive customer and operational data through an insecure order management API, while the main store is powered by Shopify.

The platform powers large-scale retail operations across online and offline channels, handling massive daily order volumes, invoice generation, delivery orchestration, and store-level fulfillment workflows.

A critical vulnerability within the platform’s AWS-backed order management infrastructure exposed customer PII, invoices, delivery metadata, warehouse operations, employee identifiers, and logistics. The issue potentially affected several hundred thousand customer and operational records.

This issue was responsibly disclosed to the platform’s security team, validated internally, and subsequently remediated within a short timeframe, accompanied by a bounty.

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Step-by-Step Breakdown of the Issue info.

Initial Observation

While placing an order through the platform’s e-commerce flow, an AWS API Gateway endpoint responsible for retrieving orders was identified.

The endpoint appeared to be deeply integrated across multiple internal and external systems, including:

• Customer order flows

• Retail POS infrastructure

• Warehouse processing systems

• Invoice generation workflows

• Delivery and logistics orchestration

Further testing revealed that the API accepted direct order identifiers and returned complete order objects without validating customer ownership or enforcing authentication.

Discovery of the Exposure

The vulnerable endpoint exposed order details through predictable order identifiers.

The application relied on a reusable API key embedded within frontend and retail operational flows rather than implementing proper authorization enforcement.

By modifying order reference values, it became possible to retrieve arbitrary customer and operational records belonging to other users.

No authentication, ownership validation, or abuse protection mechanisms were enforced.

The flow effectively looked like:

The API returned complete order objects containing customer, invoice, logistics, and operational metadata.

This allowed unrestricted enumeration of order records at scale.

Data Exposed

The affected API responses exposed highly sensitive customer and operational information, including their Name, Email Address, Phone Number, House Address, signed AWS Invoice URLs, Shipping, and Logistics Info, Store names, Employee names, etc.

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Technical Root Cause

The issue originated from broken object-level authorization (BOLA) combined with several insecure architectural decisions:

• Publicly accessible order lookup APIs

• Predictable order identifiers

• Static reusable API keys

• Shared public and internal API infrastructure

• Missing authorization enforcement

The platform relied heavily on API key presence rather than validating whether a user was authorized to access a specific order resource.

As a result, any external actor capable of accessing the endpoint could enumerate customer and operational records at scale.

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Impact

The exposure extended far beyond traditional customer PII leakage, this could have led to issues like

• Large-scale customer data harvesting

• Operational reconnaissance

• Fraud targeting

• Social engineering campaigns

• Competitive intelligence gathering

• Supply chain visibility abuse

The issue effectively exposed an end-to-end operational map of the platform’s commerce infrastructure through a single insecure API flow.

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Timeline

Vulnerability Discovered: Redacted
Validation Completed: Within 24–48 hours
Remediation Implemented: Shortly after acknowledgment
Public Disclosure: Several months post-fix