CVE-2012-4768 in Download Monitor
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Download Monitor plugin before 3.3.5.9 for WordPress allows remote attackers to inject arbitrary web script or HTML via the dlsearch parameter to the default URI.
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Analysis
by VulDB Data Team • 06/12/2025
The CVE-2012-4768 vulnerability represents a critical cross-site scripting flaw within the Download Monitor WordPress plugin, affecting versions prior to 3.3.5.9. This vulnerability resides in the plugin's handling of user input through the dlsearch parameter, which is processed through the default URI without proper sanitization or validation mechanisms. The flaw creates an avenue for remote attackers to execute malicious scripts within the context of a victim's browser, potentially compromising user sessions and data integrity. The vulnerability specifically targets the plugin's search functionality where user-supplied parameters are directly incorporated into dynamically generated web content without adequate input filtering.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing crafted script code within the dlsearch parameter. When a victim accesses this specially crafted link, the malicious code executes in the victim's browser context, leveraging the trusted relationship between the user and the vulnerable WordPress site. This type of vulnerability falls under CWE-79, which specifically addresses cross-site scripting flaws where untrusted data is incorporated into web pages without proper validation or encoding. The vulnerability demonstrates a classic input validation failure where the plugin fails to sanitize user-provided search terms before incorporating them into the page output, creating a persistent vector for malicious code injection.
The operational impact of CVE-2012-4768 extends beyond simple script execution, as it can enable attackers to perform session hijacking, steal sensitive cookies, redirect users to malicious sites, or even execute more sophisticated attacks such as credential theft. Given that WordPress plugins often have elevated privileges and access to user data, the compromise of a plugin like Download Monitor can provide attackers with significant footholds within the web application environment. The vulnerability is particularly concerning because it affects the plugin's search functionality, which is likely to be frequently used, increasing the attack surface and potential impact. From an attack framework perspective, this vulnerability maps to ATT&CK technique T1566.001 for initial access through malicious web content and T1059.001 for command and control through script injection.
Mitigation strategies for CVE-2012-4768 should prioritize immediate plugin updates to version 3.3.5.9 or later, which contain the necessary patches to sanitize user input properly. Additionally, administrators should implement proper input validation at multiple levels including web application firewalls, content security policies, and regular security audits of installed plugins. The vulnerability highlights the importance of maintaining up-to-date third-party components and implementing defense-in-depth strategies. Organizations should also consider implementing proper output encoding for all dynamic content and establishing robust monitoring for suspicious user activity patterns. The security community has recognized this vulnerability as a prime example of why proper input sanitization and output encoding practices are essential in preventing XSS attacks, particularly within content management systems where plugins can introduce additional attack vectors.