CVE-2024-30920 in DerbyNet
Summary
by MITRE • 04/19/2024
Cross Site Scripting vulnerability in DerbyNet v9.0 and below allows a remote attacker to execute arbitrary code via the render-document.php component.
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Analysis
by VulDB Data Team • 04/08/2025
The Cross Site Scripting vulnerability identified as CVE-2024-30920 affects DerbyNet version 9.0 and earlier, representing a critical security flaw that enables remote attackers to inject malicious scripts into web applications. This vulnerability specifically targets the render-document.php component, which serves as a critical interface for document rendering within the DerbyNet system. The flaw stems from insufficient input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before processing it within the web application context. The vulnerability operates under CWE-79 which categorizes Cross Site Scripting as a widespread web application security weakness where malicious scripts are injected into trusted websites, making it a fundamental concern in web security architecture.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input through the render-document.php endpoint and submits it to the vulnerable system. The application processes this input without adequate sanitization, allowing the malicious script to be executed within the context of other users' browsers who access the affected page. This type of attack can lead to session hijacking, credential theft, or redirection to malicious websites, effectively compromising the integrity and confidentiality of user data. The vulnerability's impact is amplified by the fact that it affects a core document rendering component, meaning that any user interaction with document generation or display functionality could potentially serve as an attack vector.
The operational consequences of CVE-2024-30920 extend beyond simple script execution, as it creates a persistent threat landscape where attackers can maintain long-term access to compromised systems. When considering the ATT&CK framework, this vulnerability maps to T1566 (Phishing) and T1059 (Command and Scripting Interpreter) techniques, as attackers can leverage the XSS flaw to deliver malicious payloads and establish persistent access. The vulnerability's presence in DerbyNet v9.0 and below creates a significant risk for organizations relying on this system, particularly those handling sensitive data or requiring secure document processing capabilities. The attack surface is broadened by the fact that the flaw exists in a document rendering component, which typically receives user input from multiple sources, increasing the probability of successful exploitation.
Organizations must implement comprehensive mitigations to address this vulnerability, beginning with immediate patching of DerbyNet installations to versions that resolve the XSS flaw. The remediation strategy should include input validation at multiple layers, implementing proper output encoding for all dynamic content, and deploying web application firewalls to detect and block malicious payloads. Additionally, security teams should conduct thorough code reviews focusing on the render-document.php component to identify potential similar vulnerabilities in other parts of the application. The implementation of Content Security Policy headers can provide an additional defense-in-depth measure, while regular security assessments and penetration testing should be conducted to ensure that similar vulnerabilities do not exist in other components of the DerbyNet system. Organizations should also establish monitoring procedures to detect potential exploitation attempts and maintain incident response protocols specifically designed to address XSS-related security events.