CVE-2026-102458 in EasyFlow .NET
Summary
by MITRE • 09/30/2026
EasyFlow .NET developed by Digiwin has a Missing Authentication vulnerability. Unauthenticated remote attackers can obtain other users' plaintext passwords through a specific API.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 09/30/2026
The identified security flaw in EasyFlow.NET, a workflow automation platform developed by Digiwin Software, represents a critical failure in access control mechanisms. This vulnerability is classified as a missing authentication issue, which fundamentally allows unauthenticated remote attackers to interact with sensitive application endpoints without providing valid credentials or session tokens. In the context of modern web applications and enterprise software suites like EasyFlow.NET, API endpoints are often designed for internal communication or privileged administrative tasks. When these endpoints lack proper verification of user identity, they become accessible to any external actor who can reach the network segment hosting the service. This scenario aligns directly with CWE-306, which defines a missing authentication vulnerability as one where an application fails to authenticate requests before processing them, thereby allowing unauthorized access to protected resources.
The specific operational impact of this flaw involves the exposure of plaintext passwords for other users within the system. By exploiting a specific API endpoint that does not enforce authentication checks, an attacker can retrieve sensitive credential data in its unencrypted form. The retrieval of plaintext passwords is particularly severe because it bypasses standard cryptographic protections such as hashing and salting typically used to store user credentials securely. If these passwords are reused across other services or platforms due to poor password hygiene by end-users, the compromise extends beyond EasyFlow.NET into a broader credential stuffing attack vector. This significantly increases the risk of lateral movement within an organization's network infrastructure, potentially leading to full system compromise if administrative accounts are targeted.
From a tactical perspective, this vulnerability maps to several techniques in the MITRE ATT&CK framework. The initial exploitation phase corresponds to T1078, Valid Accounts, as attackers leverage valid but unauthenticated access patterns or exploit missing checks to impersonate legitimate users indirectly by stealing their credentials. Furthermore, the act of retrieving sensitive data from a database or backend service falls under T1213, Data from Information Repositories, where adversaries extract information directly from storage systems without proper authorization. The ability to obtain plaintext passwords also facilitates subsequent credential-based attacks such as brute force attempts against other services (T1110) or phishing campaigns using harvested personal data (T1539).
The root cause of this vulnerability likely stems from a misconfiguration in the web server's routing table or an oversight in the application framework's middleware pipeline. Developers may have inadvertently exposed administrative or diagnostic APIs to public-facing networks without implementing appropriate security filters. In many cases, such vulnerabilities arise when internal-only endpoints are not properly segmented or secured with mutual TLS authentication and strict access control lists. The presence of plaintext passwords suggests that the underlying database storage mechanism for user credentials is either poorly designed or has been compromised through this specific API vector, indicating a deeper systemic issue in how sensitive data is managed within the application's architecture.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. Immediately, Digiwin Software should release a patch that enforces strict authentication requirements on all API endpoints, particularly those handling user credential data or administrative functions. Access control lists (ACLs) should be implemented to restrict access to sensitive APIs based on IP whitelisting for internal services only, ensuring they are not exposed to the public internet. For existing deployments, network-level controls such as firewalls and web application firewalls can temporarily block external access to these specific endpoints until a permanent fix is applied.
Long-term remediation requires a comprehensive review of the authentication and authorization architecture across EasyFlow.NET. All API endpoints must be audited to ensure they implement robust identity verification mechanisms consistent with industry standards like OAuth 2.0 or OpenID Connect where applicable. Password storage practices should be reviewed to ensure that plaintext passwords are never stored in databases; instead, strong hashing algorithms such as bcrypt, scrypt, or Argon2 should be employed. Additionally, implementing multi-factor authentication for administrative accounts and enabling detailed logging of API access attempts can help detect future exploitation attempts early. Regular penetration testing focused on broken object level authorization (BOLA) and missing function level authentication will further harden the application against similar vulnerabilities in the future.