Description

The Verge3D WordPress plugin from 4.1.0 through 4.13.0 does not verify with the payment provider that a payment was actually made, and does not check order ownership, allowing unauthenticated users to mark any order as paid.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.3",
  "pubDate": "2026-09-28T07:17:21.500Z",
  "pubdate": "2026-09-28T07:17:21.500Z",
  "executiveSummary": "The Verge3D WordPress plugin, specifically versions 4.1.0 through 4.13.0, contains a critical security vulnerability related to improper input validation and broken access control within its payment processing workflow.\nThe flaw stems from the failure of the plugin to perform server-side verification of payment statuses with external providers and its inability to enforce order ownership checks.\nThis vulnerability allows unauthenticated remote attackers to manipulate order statuses, effectively marking any arbitrary order as paid without fulfilling a financial transaction.\nThe impact is severe, as it facilitates unauthorized access to digital goods or services, potentially leading to significant financial loss and inventory discrepancies for affected merchants.\nNo special privileges or authentication are required for exploitation, as the vulnerable endpoint is accessible to any user capable of interacting with the plugin's payment callback or order management functionality.\nThe risk is categorized as high, as it directly undermines the integrity of the e-commerce transaction chain.",
  "technicalDetails": "The root cause of this vulnerability is an insecure implementation of the payment processing logic within the Verge3D plugin. The application fails to implement a secondary verification step (often referred to as a Payment Data Transfer or Webhook validation) with the configured payment gateway provider. Consequently, the application blindly trusts user-supplied data or request parameters intended to indicate payment success.\nFurthermore, the plugin lacks adequate object-level authorization checks. When an order status update request is received, the code does not verify that the requestor is the legitimate owner of the order, nor does it perform a cryptographic handshake to ensure the request originated from an authorized payment provider.\nThe attack flow proceeds as follows: 1. An attacker identifies the target endpoint responsible for processing payment callbacks or status updates within the Verge3D plugin. 2. The attacker crafts a malicious request targeting an order ID of their choosing. 3. Because the system does not validate the transaction integrity with the provider, it processes the request as a legitimate 'Payment Complete' notification. 4. The application updates the database to reflect the order as 'Paid', triggering whatever automated processes (such as email delivery or digital asset release) are associated with a successful payment.\nThis flaw is persistent across Verge3D versions 4.1.0 to 4.13.0. Because the vulnerability exists at the logic layer, it can be triggered over a standard network connection (HTTPS) without any prior authentication. The lack of validation ensures that the server-side component treats the attacker's input as authoritative, leading to unauthorized state transitions in the application's order management database.\nPost-exploitation, the attacker gains the benefits of a completed transaction without the associated cost. The integrity of the business logic is entirely subverted, potentially leading to mass automated exploitation where an attacker scripts the status modification of all active orders in the database. As the vulnerability resides in the way the plugin handles payment state, there is no mitigation via client-side controls; the flaw is intrinsic to the plugin's interaction with external payment gateway logic."
}