CVE-2026-102457 in EasyFlow
Summary
by MITRE • 09/30/2026
EasyFlow .NET developed by Digiwin has an Arbitrary File Read vulnerability. Authenticated remote attackers can exploit this vulnerability to download arbitrary system files.
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Analysis
by VulDB Data Team • 09/30/2026
The software EasyFlow.NET, a workflow automation platform developed by Digiwin Software Limited, contains a critical security flaw classified as an arbitrary file read vulnerability. This type of weakness allows an attacker to access and retrieve sensitive data from the server's filesystem that they should not have permission to view or modify. The presence of this vulnerability indicates a failure in input validation and path traversal controls within the application logic, specifically when handling requests related to file downloads or document retrieval mechanisms inherent to workflow management systems.
The technical root cause lies in how the application processes user-supplied parameters for file paths without adequate sanitization. When an authenticated remote attacker interacts with specific endpoints designed to serve files associated with workflows or documents, they can manipulate these input parameters using directory traversal sequences such as dot-dot-slash (../) characters. By injecting these sequences into the filename parameter, the attacker instructs the server to navigate up the directory hierarchy beyond the intended web root or application data folder. This allows the requestor to bypass access controls and target system files located in sensitive directories, including configuration files containing database credentials, private keys, source code, or other proprietary business logic stored on the disk.
The operational impact of this vulnerability is severe for organizations relying on EasyFlow.NET for their internal processes. Since exploitation requires authentication, it targets users who have already gained a foothold within the system, which may include employees with varying levels of access privileges. Once authenticated, an attacker can exfiltrate sensitive information that compromises confidentiality and integrity. The stolen data could reveal infrastructure details, such as server operating systems, network configurations, or database connection strings, facilitating further lateral movement in the network. Additionally, exposure of proprietary workflow definitions might lead to intellectual property theft or provide insights into business processes that could be leveraged for social engineering attacks against other stakeholders.
From a classification perspective, this vulnerability aligns with CWE-22: Improper Limitation of a Pathname to a Restricted Directory, commonly known as path traversal. It also relates to CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory if the exposed files contain secrets. In terms of attack tactics, this exploitation falls under MITRE ATT&CK technique T1083: File and Directory Discovery, where adversaries search for specific data on a compromised system to aid in subsequent phases like collection and exfiltration. The requirement for authentication places it within the context of authenticated attacks, emphasizing that even users with low-level privileges can escalate their impact by accessing unauthorized resources through this flaw.
To mitigate this risk, immediate remediation actions are required from both technical and administrative perspectives. Developers must implement strict input validation on all file path parameters to ensure they only contain expected alphanumeric characters and do not include traversal sequences or absolute paths that escape the designated directory structure. Utilizing a whitelist approach for allowed filenames is more secure than relying solely on blacklist filters, which can be bypassed using encoding variations or alternative syntaxes. Furthermore, implementing chroot jails or sandboxing mechanisms to restrict application processes from accessing files outside their specific working directories adds an essential layer of defense in depth.
Administrative controls should also be reviewed to ensure that the principle of least privilege is strictly enforced across all user roles within EasyFlow.NET. Regular security audits and penetration testing focused on file handling functionalities are recommended to identify similar weaknesses before they can be exploited. Keeping the software updated to the latest version provided by Digiwin Software Limited is critical, as vendors typically release patches addressing such vulnerabilities in subsequent releases. Organizations should also monitor for any indicators of compromise related to unusual file access patterns or large volumes of data being downloaded from the application server.