CVE-2026-7171 in Cloud Web application
Summary
by MITRE • 09/28/2026
Stored Cross-Site Scripting (XSS) in TPVEnlanube affecting the following endpoint and parameter:
* CVE-2026-7171: parameter 'Apellido 1' in the endpoint '/administrator/index.php?page=admin.user_add&user_id=45&option=com_virtuemart'.
Successful exploitation of this vulnerability could allow an authenticated attacker to inject malicious code and execute it in users' browsers without their consent.
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Analysis
by VulDB Data Team • 09/28/2026
The vulnerability identified as CVE-2026-7171 represents a critical security flaw within the TPVEnlanube software ecosystem, specifically targeting the administrative interface for user management via the VirtueMart component. This stored cross-site scripting (XSS) vulnerability resides in the 'Apellido 1' parameter of the endpoint '/administrator/index.php?page=admin.user_add&user_id=45&option=com_virtuemart'. The nature of this flaw is classified as a Stored XSS, which distinguishes it from reflected variants by allowing malicious payloads to be permanently saved on the target server. In this specific context, the vulnerability arises because the application fails to adequately sanitize or encode user-supplied input when processing data for new user accounts within the administrative panel. When an authenticated attacker with sufficient privileges to add users exploits this flaw, they can inject executable JavaScript code into the 'Apellido 1' field during the account creation process. This payload is then stored in the backend database without validation checks that would typically strip or escape special characters and script tags.
The operational impact of this vulnerability extends beyond a single session, as the malicious content becomes part of the persistent data structure associated with the victim user profile. Consequently, every time an administrator or another authorized user accesses the page displaying these stored details, such as viewing the newly created user's information in the VirtueMart backend interface, the embedded script executes within their browser context. This execution occurs under the trust relationship established by the administrative session cookies and authentication tokens of the viewer. The attacker does not need to trick a victim into clicking a malicious link; instead, the vulnerability leverages the routine administrative workflows where user data is reviewed or edited. This persistence mechanism significantly amplifies the risk profile compared to transient vulnerabilities, as it ensures continuous exposure until the stored payload is manually removed from the database by an administrator who may be unaware of its malicious nature.
From a technical perspective, this flaw aligns with CWE-79, which describes Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The specific vector here involves server-side input validation failure where the application treats untrusted data from the 'Apellido 1' field as safe to render directly into HTML output without applying context-aware encoding rules. This allows standard JavaScript injection techniques, such as script tag insertion or event handler manipulation like onerror attributes, to bypass client-side protections and execute arbitrary code in the security context of the administrative domain. The presence of this vulnerability indicates a lack of robust input validation layers within the VirtueMart integration points used by TPVEnlanube for user management operations.
The exploitation potential is further contextualized through the MITRE ATT&CK framework, specifically mapping to techniques related to Client-side Scripting Injection and potentially Credential Access if the injected script performs keylogging or session hijacking activities. An attacker leveraging this vulnerability could achieve several malicious outcomes including stealing administrative cookies to impersonate privileged users, defacing the application interface by altering displayed content, or deploying further malware payloads through drive-by download tactics facilitated by the trusted domain context. The ability to execute code in an administrator's browser poses a severe threat to the integrity and confidentiality of the entire e-commerce platform managed by TPVEnlanube, as administrative access typically grants control over product data, customer information, and system configurations.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Immediate actions should include identifying all instances where the 'Apellido 1' field has been used to store malicious payloads in the database and removing those records manually or via a targeted SQL query if feasible. Developers must implement strict input validation that rejects any non-alphabetic characters for fields intended to hold surnames, adhering to the principle of least privilege regarding acceptable character sets. Furthermore, output encoding must be enforced at all points where user-supplied data is rendered into HTML responses, ensuring that special characters are converted to their corresponding HTML entities before display. Upgrading TPVEnlanube and its associated VirtueMart components to versions patched by the vendor is essential, as these updates typically include corrected sanitization logic for administrative input fields. Regular security audits focusing on stored XSS vectors in user management modules will help prevent recurrence of such persistent injection flaws.