CVE-2026-104475 in ERP CRM
Summary
by MITRE • 10/03/2026
IDURAR ERP CRM through 4.1.1 contains a stored cross-site scripting vulnerability that allows authenticated users to inject scripts by uploading unsanitized SVG files. Attackers can upload JavaScript-laden SVGs via the profile update or settings upload endpoints, which execute in victims' browsers when served from the /public route.
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Analysis
by VulDB Data Team • 10/03/2026
The identified vulnerability represents a stored cross-site scripting flaw within IDURAR ERP CRM versions up to 4.1.1, specifically exploiting the application's handling of file uploads for user profile and settings updates. This security defect arises because the system fails to adequately sanitize or validate SVG files before storing them in persistent storage. Unlike reflected XSS where malicious payloads are delivered via a single request, stored vulnerabilities persist on the server side, allowing an attacker to inject executable JavaScript code that will be served to any victim who subsequently views the compromised content. The attack vector involves authenticated users uploading specially crafted SVG files containing embedded script tags or event handlers such as onload attributes. Because these files are uploaded through legitimate administrative interfaces like profile updates, they bypass initial perimeter defenses and gain a trusted context within the application's domain.
From a technical perspective, the core issue lies in the insufficient validation of file content types and structures during the upload process. While many applications attempt to mitigate XSS by restricting uploads to specific image formats or stripping HTML tags from filenames, IDURAR fails to inspect the internal structure of SVG files for executable code. SVG is an XML-based vector image format that supports scripting capabilities natively through JavaScript event handlers. When a user with valid credentials uploads an SVG file containing malicious scripts, the application stores this file in its public directory without sanitizing the embedded code. Subsequently, when another user or administrator accesses their profile page or settings area where these images are displayed, the browser interprets and executes the injected script as if it were part of the legitimate web page source. This execution occurs within the context of the application's origin, granting the attacker full access to session cookies, local storage data, and potentially sensitive business information visible on those pages.
The operational impact of this vulnerability is significant due to its stored nature and the requirement for authentication. Although an initial attack requires a valid user account, which may seem like a limitation, it lowers the barrier for insider threats or compromised accounts to escalate privileges or exfiltrate data from other users within the same organization. Once executed, the malicious script can perform various actions including stealing session tokens to hijack active sessions, performing cross-site request forgery attacks against administrative endpoints, keylogging user inputs on sensitive forms, or redirecting victims to phishing sites designed to steal credentials further. In an ERP and CRM context where confidential customer data, financial records, and internal communications are managed, the compromise of even a single session can lead to substantial business disruption, regulatory non-compliance under standards such as GDPR or HIPAA if personal data is exposed, and reputational damage for the organization relying on this software.
This vulnerability aligns with CWE-79, which classifies improper neutralization of input during web page generation known as cross-site scripting. Furthermore, in terms of tactical mapping within the MITRE ATT&CK framework, this exploit falls under T1059 Command and Scripting Interpreter for the execution phase and potentially T1213 Data from Information Repositories if used to exfiltrate stored data. To mitigate this risk, immediate remediation should focus on implementing strict allow-lists for file uploads that verify not only the file extension but also the MIME type and content structure using robust libraries capable of parsing SVG XML trees. Developers must ensure that any user-supplied input destined for display in a browser context is properly encoded or escaped according to OWASP guidelines, specifically Context-Dependent Encoding. Additionally, implementing Content Security Policy headers can help mitigate the impact by restricting script execution sources, although this should be viewed as a defense-in-depth measure rather than a primary fix. Upgrading to patched versions of IDURAR ERP CRM that address these input validation flaws is essential for restoring security posture and preventing further exploitation within the enterprise environment.