CVE-2023-34176 in Woo Oficial Plugin
Summary
by MITRE • 08/30/2023
Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Chilexpress Chilexpress woo oficial plugin <= 1.2.9 versions.
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Analysis
by VulDB Data Team • 09/27/2023
The CVE-2023-34176 vulnerability represents a critical unauthenticated reflected cross-site scripting flaw discovered in the official Chilexpress WooCommerce plugin version 1.2.9 and earlier. This vulnerability specifically affects e-commerce platforms utilizing the Chilexpress shipping plugin for WooCommerce, creating a significant security risk for online businesses operating in Chile. The flaw exists within the plugin's handling of user input parameters, allowing malicious actors to inject malicious scripts into web pages viewed by unsuspecting users. The vulnerability stems from inadequate input validation and output encoding mechanisms within the plugin's codebase, particularly in how it processes and displays data from HTTP request parameters. This issue directly impacts the integrity of web applications by enabling attackers to execute arbitrary JavaScript code in the context of the affected user's browser.
The technical implementation of this vulnerability involves the plugin's failure to properly sanitize and escape user-supplied input before incorporating it into dynamic web page content. When users navigate to specific URLs or interact with certain plugin functionalities, the application processes parameters without adequate security measures, resulting in reflected XSS conditions. The vulnerability typically manifests when attackers craft malicious URLs containing script payloads that are then reflected back to users through the plugin's response handling. This creates a persistent threat vector that can be exploited across multiple user sessions and can potentially escalate to more severe attacks such as session hijacking or credential theft. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and represents a classic example of how insufficient input validation can compromise web application security.
The operational impact of CVE-2023-34176 extends beyond simple script injection, potentially allowing attackers to compromise user sessions, steal sensitive information, or redirect users to malicious websites. For Chilexpress plugin users, this vulnerability creates a risk of unauthorized access to customer data, payment information, and administrative functions within the WooCommerce platform. The unauthenticated nature of the flaw means that attackers do not require valid credentials to exploit the vulnerability, making it particularly dangerous for online retailers. Attackers can leverage this vulnerability to inject malicious code that could steal cookies, perform actions on behalf of users, or redirect them to phishing sites. The attack surface is particularly concerning for e-commerce environments where users may have elevated privileges or sensitive transaction data. This vulnerability also aligns with ATT&CK technique T1531 which involves the use of malicious scripts to gain access to systems, and T1071.001 which covers application layer protocol usage for command and control.
Mitigation strategies for CVE-2023-34176 should prioritize immediate plugin updates to versions that address the reflected XSS vulnerability. System administrators should implement proper input validation and output encoding mechanisms, ensuring all user-supplied data is sanitized before processing. The recommended approach includes applying the vendor's official security patch, implementing web application firewalls with XSS detection capabilities, and conducting comprehensive security assessments of all plugin components. Organizations should also establish monitoring protocols to detect potential exploitation attempts and maintain updated threat intelligence feeds. Security measures should incorporate proper parameter validation, use of secure coding practices, and regular security audits of web applications. Additionally, implementing Content Security Policy headers can provide additional defense-in-depth measures against XSS attacks. The vulnerability demonstrates the critical importance of maintaining up-to-date third-party plugins and following secure development practices as outlined in OWASP Top 10 and NIST cybersecurity guidelines. Regular security testing and vulnerability assessments should be conducted to identify similar issues in other components of the web application stack.