CVE-2026-114191 in UPI QR Code Payment Gateway Plugin
Summary
by MITRE • 10/24/2026
Missing Authorization vulnerability in Knit Pay UPI QR Code Payment Gateway for WooCommerce upi-qr-code-payment-for-woocommerce allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects UPI QR Code Payment Gateway for WooCommerce: from n/a through 1.6.3.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 10/24/2026
The vulnerability identified in the Knit Pay UPI QR Code Payment Gateway plugin for WordPress, specifically affecting versions up to and including 1.6.3, represents a critical failure in access control mechanisms within an e-commerce payment processing environment. This flaw is categorized under CWE-862, which denotes Missing Authorization, indicating that the application fails to enforce proper checks on user privileges before allowing actions or data access. In the context of web-based payment gateways, such vulnerabilities are particularly severe because they can allow unauthorized entities to manipulate financial transactions, bypass authentication protocols, or access sensitive customer and merchant data without valid credentials. The root cause lies in an incorrectly configured security level where specific endpoints or functions within the plugin do not verify whether the initiating request originates from a legitimate, authenticated user with appropriate permissions.
From a technical perspective, this misconfiguration typically manifests when API calls or administrative actions are processed based solely on the presence of certain parameters rather than validating the session state or role-based access controls associated with the requester. An attacker could exploit this by crafting malicious HTTP requests that target internal plugin functions responsible for processing payments, updating transaction statuses, or retrieving merchant configuration details. Since the vulnerability allows exploiting incorrectly configured access control security levels, it implies that the software relies on client-side validation or lacks server-side authorization checks entirely for certain operations. This creates a pathway where an unauthenticated actor can perform actions intended only for administrators or verified merchants, effectively bypassing the intended security boundaries of the WordPress ecosystem and the payment gateway integration layer.
The operational impact of this vulnerability is significant given its placement within a financial transaction pipeline. Successful exploitation could lead to unauthorized modification of payment records, potentially allowing attackers to mark fraudulent transactions as completed or alter refund statuses for their benefit. Furthermore, if sensitive data such as customer PII (Personally Identifiable Information) or merchant API keys are accessible through these unprotected endpoints, it poses a direct risk to privacy compliance standards like GDPR and PCI DSS. The ability to manipulate the payment gateway's state could also disrupt business operations by causing discrepancies in financial reporting or triggering unintended automated workflows that rely on accurate transaction data integrity.
To mitigate this risk, immediate action is required for all administrators running affected versions of the Knit Pay UPI QR Code Payment Gateway plugin. The primary remediation step is to upgrade the plugin to a version later than 1.6.3, where developers have presumably implemented stricter server-side authorization checks and validated access control lists for sensitive endpoints. Until an update is applied or if upgrading is not immediately feasible, administrators should consider restricting access to the WordPress admin area through IP whitelisting and ensuring that all administrative accounts utilize strong, multi-factor authentication. Additionally, deploying a Web Application Firewall can help detect and block anomalous request patterns indicative of authorization bypass attempts, providing a temporary layer of defense against exploitation while the underlying code vulnerability is addressed by the vendor.