CVE-2019-6003 in Amazon Pay Plugin
Summary
by MITRE
Cross-site scripting vulnerability in EC-CUBE plugin 'Amazon Pay Plugin 2.12,2.13' version 2.4.2 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 12/19/2023
The vulnerability identified as CVE-2019-6003 represents a critical cross-site scripting flaw within the EC-CUBE e-commerce platform's Amazon Pay Plugin versions 2.12, 2.13 and 2.4.2 or earlier. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which specifically targets web applications that fail to properly validate or sanitize user input before rendering it in web pages. The flaw enables remote attackers to inject malicious scripts or HTML content into the application's response, potentially compromising user sessions and data integrity. The vulnerability exists in the plugin's handling of unspecified input vectors, suggesting that multiple entry points within the plugin's codebase could serve as attack surfaces for malicious actors.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the Amazon Pay Plugin's codebase. When users interact with the plugin's functionality, particularly during payment processing or account management operations, the application fails to properly sanitize user-supplied data before incorporating it into dynamically generated web content. This omission creates opportunities for attackers to inject malicious payloads that execute in the context of other users' browsers, potentially leading to session hijacking, credential theft, or data manipulation. The unspecified vectors indicate that the vulnerability could manifest through various user input points including form fields, URL parameters, or API responses within the plugin's functionality.
The operational impact of this vulnerability extends beyond simple script injection, as it represents a significant threat to e-commerce platform security and customer data protection. Remote attackers could exploit this weakness to execute arbitrary code in victims' browsers, potentially accessing sensitive customer information, modifying transaction data, or redirecting users to malicious websites. The vulnerability affects businesses using EC-CUBE platforms with the affected plugin versions, creating risks for financial data exposure and customer trust erosion. Given that the Amazon Pay Plugin handles payment processing and customer account information, successful exploitation could lead to unauthorized transactions, account takeovers, and compromise of sensitive payment data. The vulnerability also aligns with ATT&CK technique T1566, which covers credential harvesting through phishing and social engineering attacks that leverage web-based vulnerabilities.
Organizations should immediately implement comprehensive mitigation strategies to address this vulnerability. The primary remediation involves upgrading to the patched version of the Amazon Pay Plugin, which should include proper input validation and output encoding mechanisms. Security teams should also implement web application firewalls with XSS protection rules, conduct thorough code reviews of plugin implementations, and establish robust input sanitization processes. Additionally, organizations should monitor for suspicious user activity and implement proper logging of plugin interactions to detect potential exploitation attempts. The vulnerability demonstrates the importance of regular security assessments and timely patch management, particularly for third-party plugins that integrate with critical business applications. Organizations should also consider implementing content security policies and regular security training for developers to prevent similar vulnerabilities in future implementations.