CVE-2026-27330 in Mobile App for WooCommerce Plugin
Summary
by MITRE • 08/27/2026
Unauthenticated Broken Access Control in Mobile App for WooCommerce <= 0.4.62 versions.
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Analysis
by VulDB Data Team • 08/27/2026
The vulnerability identified as an unbroken access control flaw within the mobile application interface of WooCommerce prior to version 0.4.62 represents a critical security deficiency that allows unauthorized entities to interact with sensitive backend systems without proper authentication or authorization checks. This type of vulnerability typically stems from insufficient server-side validation of user permissions when handling API requests initiated by the mobile client. In many modern e-commerce architectures, the mobile application serves as a thin client that communicates directly with the WordPress REST API or custom endpoints exposed by the WooCommerce plugin. When these endpoints fail to rigorously verify whether the requesting session possesses the necessary administrative privileges or valid authentication tokens before processing state-changing operations, it creates an avenue for exploitation where any actor can manipulate store data, orders, products, and customer information remotely.
From a technical perspective, this flaw aligns closely with CWE-284 Improper Access Control and CWE-306 Missing Authentication for Critical Function within the Common Weakness Enumeration framework. The core issue lies in the application logic failing to enforce role-based access controls consistently across all entry points accessible via the mobile interface. Attackers can leverage tools such as Burp Suite or custom scripts to intercept, modify, and replay HTTP requests targeting these vulnerable endpoints. By stripping away authentication headers or manipulating parameter values that indicate user roles, an attacker can perform actions reserved exclusively for store administrators. This includes creating new admin users, modifying product pricing structures, changing order statuses from pending to completed without payment verification, or exporting sensitive customer data including personally identifiable information and financial details stored in the database.
The operational impact of this vulnerability is severe due to its direct effect on the integrity and confidentiality of e-commerce operations. Since WooCommerce powers a significant portion of online retail platforms globally, successful exploitation can lead to substantial financial loss through fraudulent transactions, inventory manipulation, or ransomware-style extortion where attackers lock down administrative access unless a ransom is paid. Furthermore, the exposure of customer data violates privacy regulations such as GDPR in Europe and CCPA in California, potentially resulting in heavy regulatory fines and irreversible reputational damage for affected businesses. The lack of authentication means that this attack does not require prior compromise of user credentials, making it particularly dangerous against sites with weak password policies or those where credential stuffing attacks have previously succeeded but were limited by proper access controls which are now bypassed.
This vulnerability also maps to specific techniques within the MITRE ATT&CK framework for mobile platforms and enterprise environments. It corresponds to T1078 Valid Accounts if an attacker uses stolen credentials, but more critically it reflects T1546 Event Triggered: Execution Hooks or general privilege escalation mechanisms where default configurations allow broader access than intended. In the context of mobile applications interacting with web backends, this is often categorized under API security failures described in OWASP API Security Top 10 as Broken Object Level Authorization (BOLA) or Broken Function Level Authorization (BFLA). The attacker essentially treats the public-facing endpoints as if they were internal administrative interfaces, bypassing the intended separation of duties between customer-facing operations and backend management tasks.
Mitigation strategies must focus on immediate remediation through software updates combined with robust architectural hardening measures. The primary solution is to upgrade the WooCommerce mobile app plugin to version 0.4.62 or later where these access control checks have been corrected by the developers. For organizations unable to update immediately due to compatibility constraints, temporary mitigations include implementing a Web Application Firewall that inspects incoming API requests for anomalies in authentication headers and enforces strict rate limiting on administrative endpoints. Additionally, enabling multi-factor authentication for all administrator accounts adds a layer of defense even if access control flaws are exploited by requiring secondary verification steps. Regular security audits focusing specifically on REST API endpoint permissions and implementing principle of least privilege across all user roles will further reduce the attack surface associated with such vulnerabilities ensuring that only authorized personnel can perform critical administrative functions within the e-commerce ecosystem.