CVE-2026-102459 in EasyFlow
Summary
by MITRE • 09/30/2026
EasyFlow .NET developed by Digiwin has a Reflected Cross-site Scripting vulnerability. Unauthenticated remote attackers can execute arbitrary JavaScript codes in user's browser through phishing attacks.
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Analysis
by VulDB Data Team • 09/30/2026
The software EasyFlow.NET, developed by Digiwin Software Limited, contains a reflected cross-site scripting (XSS) vulnerability that poses significant risks to web application security and end-user data integrity. This flaw allows unauthenticated remote attackers to inject malicious client-side scripts into web pages viewed by other users. The vulnerability stems from insufficient validation or sanitization of user-supplied input within the application's HTTP requests, specifically in parameters that are reflected back to the browser without proper encoding. As a result, when an unsuspecting victim clicks on a specially crafted link provided via phishing attacks, the malicious script is executed directly in their web browser context. This execution occurs under the same origin as the vulnerable application, granting the attacker access to sensitive information such as session cookies, authentication tokens, and potentially personally identifiable information stored within local storage or session variables.
From a technical perspective, this vulnerability aligns with CWE-79, which is classified as Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The reflected nature of the attack means that the malicious payload is not permanently stored on the server but rather exists only within the HTTP request and response cycle. This characteristic makes it particularly suitable for phishing campaigns where social engineering techniques are employed to trick users into visiting a compromised URL. Once executed, the JavaScript code can perform various harmful actions including stealing session cookies through document.cookie access, performing cross-site request forgery (CSRF) attacks by making authenticated requests on behalf of the victim, or redirecting the user to malicious sites designed for further exploitation such as credential harvesting pages.
The operational impact of this vulnerability extends beyond immediate data theft. It undermines the trust users place in the EasyFlow.NET platform and can lead to severe business disruptions if attackers leverage stolen credentials to access sensitive enterprise workflows, financial records, or proprietary documents managed within the system. Furthermore, because the attack requires no prior authentication, it lowers the barrier for entry significantly, allowing even novice threat actors to exploit this weakness effectively. The ability to execute arbitrary JavaScript also opens avenues for more sophisticated attacks such as keylogging, browser fingerprinting, and malware distribution through drive-by downloads if combined with other vulnerabilities or exploits targeting specific browser versions.
To mitigate these risks, developers must implement strict input validation and output encoding strategies across all entry points in the EasyFlow.NET application. Specifically, any user-supplied data that is reflected back into HTML responses should be encoded using context-appropriate methods such as HTML entity encoding for content contexts, JavaScript escaping for script blocks, or URL encoding for query parameters. Additionally, implementing a Content Security Policy (CSP) header can significantly reduce the impact of successful XSS attacks by restricting the sources from which scripts are allowed to load and execute. Enabling HttpOnly flags on session cookies prevents client-side scripts from accessing them, thereby mitigating cookie theft scenarios. Regular security testing including dynamic application security testing (DAST) and code reviews focused on input handling mechanisms is essential to identify and remediate such vulnerabilities before they can be exploited in the wild. Organizations relying on EasyFlow.NET should also ensure that their instances are updated to the latest patched versions provided by Digiwin Software Limited, which likely include fixes for this specific reflection flaw.