CVE-2026-108492 in Quick Paypal Payments Plugin
Summary
by MITRE • 10/13/2026
Missing Authorization vulnerability in Fullworks Plugins Quick Paypal Payments quick-paypal-payments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Quick Paypal Payments: from n/a through 6.0.3.
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Analysis
by VulDB Data Team • 10/13/2026
The identified security flaw resides within the Fullworks Plugins Quick PayPal Payments extension, specifically affecting versions ranging from initial releases up to version 6.0.3. This vulnerability is classified as a missing authorization issue, which fundamentally represents an incorrect configuration of access control security levels. In web application architecture, proper authorization mechanisms are critical for ensuring that users can only perform actions and access data appropriate to their assigned privileges. When these controls are absent or improperly implemented, the system fails to verify whether the authenticated user has the necessary permissions before processing requests related to payment configurations, transaction statuses, or administrative settings within the PayPal integration module.
From a technical perspective, this flaw allows an attacker with low-level credentials, such as a subscriber or customer role in a WordPress environment, to interact with functions intended for higher-privileged roles like administrators or shop managers. The vulnerability likely stems from insufficient checks on critical endpoints exposed by the plugin during payment processing or configuration updates. By manipulating HTTP requests sent to these unprotected routes, an unauthorized actor can bypass standard permission gates. This type of flaw is formally categorized under CWE-269, which denotes Improper Privilege Control, and aligns with ATT&CK technique T1078, Valid Accounts, as it involves leveraging existing but insufficiently restricted credentials to gain elevated access or perform unintended actions within the application ecosystem.
The operational impact of this vulnerability is significant for any e-commerce platform relying on Quick PayPal Payments for transaction handling. An attacker could potentially modify payment settings without authorization, redirect funds, alter order statuses, or extract sensitive financial data associated with customer transactions. In severe cases, if the plugin interacts deeply with WordPress core functions, this lack of access control could serve as a stepping stone for further exploitation, including remote code execution or complete site compromise through privilege escalation. The integrity of financial records and the trustworthiness of the payment gateway integration are directly compromised by such an oversight in security design.
To mitigate this risk, immediate action is required to update the Quick PayPal Payments plugin to version 6.0.4 or later, where these authorization checks have been properly implemented. Until an upgrade is feasible, administrators should consider restricting access to WordPress admin areas and any exposed API endpoints associated with the plugin using web application firewalls that enforce strict role-based access policies. Additionally, auditing user roles within the CMS environment ensures that only trusted individuals possess elevated privileges, thereby reducing the attack surface available to potential exploiters of this missing authorization flaw. Regular security assessments and penetration testing focused on access control mechanisms are recommended to identify similar gaps in other plugins or custom code segments.