CVE-2009-3496 in DVD Zone
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in view_mag.php in Vastal I-Tech DVD Zone allows remote attackers to inject arbitrary web script or HTML via the mag_id parameter.
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Analysis
by VulDB Data Team • 09/14/2025
The vulnerability identified as CVE-2009-3496 represents a classic cross-site scripting flaw within the Vastal I-Tech DVD Zone web application, specifically affecting the view_mag.php script. This type of vulnerability falls under the Common Weakness Enumeration category CWE-79, which defines improper neutralization of input during web page generation as a critical security weakness. The flaw exists in how the application processes user-supplied input through the mag_id parameter, failing to properly sanitize or escape data before incorporating it into dynamically generated web content.
The technical exploitation of this vulnerability occurs when remote attackers submit malicious payloads through the mag_id parameter in the view_mag.php script. When the application retrieves this parameter and directly incorporates it into HTML output without adequate input validation or output encoding, it creates an environment where attacker-controlled scripts can be executed within the context of other users' browsers. This allows for the injection of arbitrary web script or HTML code that can persistently affect users who view the affected page, making it a persistent XSS vulnerability rather than a reflected one.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it enables attackers to potentially hijack user sessions, redirect victims to malicious websites, or extract sensitive information from authenticated sessions. The vulnerability affects the entire user base of the DVD Zone application, as any user who views a page containing malicious content injected through the mag_id parameter becomes a potential victim. This creates a significant risk for organizations using the application, particularly if users have administrative privileges or access to sensitive data within the system.
Security professionals should implement multiple layers of mitigation strategies to address this vulnerability. Input validation and sanitization must be enforced at the application level, ensuring that all parameters passed to view_mag.php are thoroughly checked against expected formats and sanitized before any processing occurs. Output encoding should be implemented to prevent malicious content from being interpreted as executable code within the browser context. The application should also employ proper content security policies to limit the execution of unauthorized scripts. Additionally, regular security audits and input validation testing should be conducted to prevent similar vulnerabilities from emerging in other parts of the application. This vulnerability demonstrates the critical importance of following secure coding practices and adhering to the principle of least privilege in web application development, as outlined in various cybersecurity frameworks including those referenced by the ATT&CK framework for web application attacks.