CVE-2026-106609 in Bayarcash Plugin
Summary
by MITRE • 10/10/2026
Missing Authorization vulnerability in Web Impian Bayarcash WooCommerce bayarcash-wc allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Bayarcash WooCommerce: from n/a through 4.4.2.
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Analysis
by VulDB Data Team • 10/10/2026
The identified security flaw represents a critical failure in access control mechanisms within the Web Impian Bayarcash WooCommerce plugin, specifically affecting versions ranging from initial releases up to version 4.4.2. This vulnerability stems from an insufficient implementation of authorization checks on server-side endpoints that handle sensitive financial or administrative operations. In a properly secured web application, every request must be validated against the current user's permissions before any action is executed. However, in this instance, the plugin fails to verify whether the authenticated user possesses the necessary privileges to perform specific actions, such as modifying transaction details, accessing customer data, or altering payment configurations. This oversight allows an attacker who has obtained valid credentials for a low-privilege account, such as a standard subscriber or shop manager with limited rights, to escalate their access and execute commands intended only for administrators or higher-level roles.
From a technical perspective, this issue is classified under CWE-284, which denotes Improper Access Control, and aligns closely with the ATT&CK technique T1078, Valid Accounts, as it relies on legitimate but misconfigured credentials to bypass security boundaries. The root cause typically involves missing server-side validation logic where the application trusts client-supplied input or session state without cross-referencing it against a centralized permission matrix. For example, an attacker might manipulate HTTP parameters in API calls related to order management or user profile updates by simply changing role identifiers or request payloads, and the backend processes these requests because no secondary authorization check is performed. This type of flaw is particularly dangerous in e-commerce environments where financial transactions are processed, as it can lead to unauthorized modifications of payment statuses, fraudulent refunds, or the exposure of personally identifiable information belonging to customers.
The operational impact of this vulnerability extends beyond simple data leakage; it compromises the integrity and confidentiality of the entire commerce platform. An attacker could exploit this lack of authorization to alter order totals, change shipping addresses for pending orders, or access sensitive customer payment details stored in the database. In severe cases, if combined with other vulnerabilities such as cross-site scripting or SQL injection, the scope of damage increases significantly. Furthermore, because WooCommerce is a widely used platform powering millions of online stores, successful exploitation can lead to substantial financial losses, reputational damage for merchants, and potential regulatory penalties under data protection laws like GDPR or CCPA due to the exposure of customer information. The absence of proper access control also undermines trust in the payment gateway integration provided by Bayarcash, potentially disrupting business operations and eroding consumer confidence.
Mitigation strategies must prioritize immediate remediation through software updates and rigorous code review practices. The most effective solution is for users to upgrade the Bayarcash WooCommerce plugin to a version later than 4.4.2, where the developers have presumably implemented robust authorization checks on all sensitive endpoints. Until an update is available or if upgrading is not immediately feasible, administrators should implement compensating controls at the web server or application firewall level. This includes enforcing strict role-based access control policies and monitoring for anomalous request patterns that indicate privilege escalation attempts. Additionally, conducting a thorough audit of custom code within the WordPress environment to ensure no other plugins introduce similar weaknesses is advisable. Regular security assessments and penetration testing should be integrated into the development lifecycle to detect such logic flaws early, ensuring that authorization checks are consistently applied across all user-facing functionalities.