CVE-2013-3526 in Trafficanalyzer
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in js/ta_loaded.js.php in the Traffic Analyzer plugin, possibly 3.3.2 and earlier, for WordPress allows remote attackers to inject arbitrary web script or HTML via the aoid parameter.
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Analysis
by VulDB Data Team • 03/30/2025
The CVE-2013-3526 vulnerability represents a critical cross-site scripting flaw within the Traffic Analyzer plugin for WordPress systems. This vulnerability specifically affects versions 3.3.2 and earlier, making it a significant concern for WordPress administrators who have not updated their installations. The flaw exists in the js/ta_loaded.js.php file, which is part of the plugin's JavaScript implementation for tracking and analyzing website traffic data.
The technical nature of this vulnerability stems from improper input validation and output encoding within the Traffic Analyzer plugin's JavaScript component. Attackers can exploit this weakness by manipulating the aoid parameter through malicious web requests, allowing them to inject arbitrary web scripts or HTML code into the targeted WordPress site. This occurs because the plugin fails to properly sanitize or escape user-supplied input before incorporating it into dynamically generated JavaScript code. The vulnerability operates at the application layer and can be classified under CWE-79 as a failure to sanitize user input, specifically in the context of JavaScript execution within web browsers.
The operational impact of this vulnerability extends beyond simple data theft or defacement. When exploited, the XSS attack can enable attackers to execute malicious scripts in the context of authenticated users' browsers, potentially leading to session hijacking, credential theft, or unauthorized administrative actions. The vulnerability is particularly dangerous because it allows attackers to inject code that can persistently affect visitors to the compromised website, making it a vector for widespread exploitation. Given that the Traffic Analyzer plugin is designed to track and analyze website traffic, attackers can leverage this vulnerability to gather sensitive information about site visitors or manipulate the analytics data itself.
The attack surface for CVE-2013-3526 is substantial, as it affects any WordPress installation running the vulnerable Traffic Analyzer plugin version 3.3.2 or earlier. This vulnerability aligns with ATT&CK technique T1566.001 which involves the exploitation of web applications through cross-site scripting. The vulnerability can be exploited through various attack vectors including phishing emails, compromised websites, or by directly targeting vulnerable WordPress installations through automated scanning tools. Security researchers have noted that such vulnerabilities often remain unpatched for extended periods, especially in environments where WordPress core and plugin updates are not regularly maintained.
Mitigation strategies for this vulnerability should include immediate patching of the Traffic Analyzer plugin to version 3.3.3 or later, which contains the necessary fixes for the XSS vulnerability. Additionally, administrators should implement input validation measures and consider using web application firewalls to detect and block malicious requests targeting the affected parameter. Regular security audits of WordPress plugins and themes are essential to identify similar vulnerabilities. The remediation process should also include monitoring for signs of exploitation, such as unusual traffic patterns or unauthorized changes to plugin files, as recommended by the OWASP Top Ten project. Organizations should establish automated update procedures for WordPress core and plugins to prevent similar vulnerabilities from being exploited in the future.