CVE-2024-33383 in Novel-Plus
Summary
by MITRE • 04/30/2024
Arbitrary File Read vulnerability in novel-plus 4.3.0 and before allows a remote attacker to obtain sensitive information via a crafted GET request using the filePath parameter.
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Analysis
by VulDB Data Team • 10/10/2025
The CVE-2024-33383 vulnerability represents a critical arbitrary file read flaw in the novel-plus web application version 4.3.0 and earlier. This vulnerability stems from insufficient input validation and improper access control mechanisms within the application's file handling functionality. The flaw specifically manifests when the application processes GET requests containing a filePath parameter, allowing unauthorized access to files that should remain protected. The vulnerability is classified under CWE-22 as Improper Limitation of a Pathname to a Restricted Directory, which directly relates to the lack of proper path validation and sanitization. Attackers can exploit this weakness by crafting malicious requests that traverse directory structures and access sensitive files such as configuration files, database credentials, application source code, or other confidential data stored on the server.
The technical implementation of this vulnerability occurs at the application layer where user-supplied input from the filePath parameter is directly used to construct file paths without adequate sanitization or validation. The application fails to implement proper input filtering, allowing attackers to manipulate the file path through directory traversal sequences such as ../ or ..\ to access files outside of the intended directory structure. This flaw essentially creates a path traversal vulnerability that bypasses normal file access controls and authorization mechanisms. The vulnerability operates at the HTTP request level where a remote attacker can send a specially crafted GET request to the affected application, making it particularly dangerous as it requires no authentication or privileged access to exploit. The attack vector is classified as remote and unauthenticated, aligning with ATT&CK technique T1566.001 for Initial Access through spearphishing attachments or links.
The operational impact of CVE-2024-33383 is severe and multifaceted, potentially exposing critical system information that could lead to further exploitation. An attacker who successfully exploits this vulnerability can gain access to sensitive files containing database connection strings, API keys, cryptographic certificates, application configuration files, and potentially source code that may reveal additional vulnerabilities. The exposure of such information significantly weakens the overall security posture of the affected system, as it provides attackers with valuable intelligence for subsequent attacks. The vulnerability can result in data breaches, system compromise, and unauthorized access to confidential information. Organizations using novel-plus version 4.3.0 or earlier are at risk of having their sensitive data exposed, potentially leading to regulatory compliance violations, financial losses, and reputational damage. The impact extends beyond immediate data exposure to include potential escalation to privilege escalation or lateral movement within the network.
Mitigation strategies for CVE-2024-33383 should focus on implementing robust input validation and access control measures. Organizations must immediately upgrade to the latest version of novel-plus where this vulnerability has been patched. Until an upgrade is possible, administrators should implement input sanitization at the application level, including strict validation of file paths and rejection of any input containing directory traversal sequences. Implementing proper access controls and least privilege principles can help limit the damage if exploitation occurs. Network-level mitigations such as web application firewalls and intrusion detection systems can provide additional protection by monitoring for suspicious file access patterns. The solution should include proper path normalization and validation that ensures all file access requests are confined to predefined directories. Security teams should also conduct comprehensive audits of file access mechanisms and implement logging to detect unauthorized file access attempts. Regular security assessments and penetration testing should be performed to identify similar vulnerabilities in other applications and systems. The mitigation approach aligns with security best practices outlined in NIST SP 800-53 and ISO 27001 frameworks for protecting against information disclosure vulnerabilities.