CVE-2025-6534 in novel-plus
Summary
by MITRE • 06/24/2025
A vulnerability, which was classified as problematic, was found in xxyopen/201206030 novel-plus up to 5.1.3. This affects the function remove of the file novel-admin/src/main/java/com/java2nb/common/controller/FileController.java of the component File Handler. The manipulation leads to improper control of resource identifiers. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 06/25/2025
CVE-2025-6534 represents a critical resource identifier control vulnerability within the novel-plus web application framework version 5.1.3 and earlier. This flaw exists in the FileController component, specifically within the remove function located at novel-admin/src/main/java/com/java2nb/common/controller/FileController.java. The vulnerability stems from inadequate validation and sanitization of file path parameters, allowing attackers to manipulate resource identifiers through crafted input. The issue manifests when the application processes file removal requests without proper authorization checks or path validation, potentially enabling arbitrary file deletion operations.
The technical exploitation of this vulnerability requires remote access and involves manipulating the file identifier parameters to traverse directory structures beyond intended boundaries. Attackers can leverage this weakness to delete critical system files or manipulate application data by crafting malicious requests that bypass normal file handling restrictions. This type of vulnerability maps to CWE-22 - Improper Limitation of a Pathname to a Restricted Directory and aligns with ATT&CK technique T1059.007 - Command and Scripting Interpreter: PowerShell, as it enables unauthorized file system manipulation. The attack complexity is elevated due to the need for precise parameter crafting and understanding of the application's file handling mechanisms.
The operational impact of CVE-2025-6534 extends beyond simple file deletion capabilities, potentially allowing attackers to compromise the entire application infrastructure. Remote exploitation capabilities mean that unauthorized parties can initiate attacks from external networks without requiring physical access to the system. The vulnerability's exploitability difficulty rating reflects the technical sophistication required to successfully manipulate the file handling process, though the public disclosure increases the likelihood of successful exploitation. Organizations running affected versions face significant risks including data loss, system compromise, and potential service disruption. The lack of vendor response to early disclosure attempts compounds the risk, leaving affected systems without official patches or mitigation guidance.
Mitigation strategies for CVE-2025-6534 should focus on implementing robust input validation and access control measures within the file handling components. Organizations should immediately implement parameter validation to prevent directory traversal attacks and ensure that all file operations are properly authenticated and authorized. The implementation of principle of least privilege access controls for file operations, combined with proper path validation and sanitization, can effectively prevent exploitation attempts. Additionally, network segmentation and firewall rules should restrict access to administrative endpoints until proper patches are applied. Regular security monitoring and log analysis should be enhanced to detect suspicious file manipulation activities. The vulnerability highlights the importance of secure coding practices and proper resource identifier handling, particularly in administrative interfaces where privileged operations are performed. Organizations should also consider implementing web application firewalls to detect and block malicious requests targeting known vulnerable endpoints.