CVE-2026-108053 in ALO Suite
Summary
by MITRE • 11/03/2026
A stored Cross-Site Scripting (XSS) vulnerability in Alosuite that affects the delivery note functionality. Insufficient sanitization and encoding of the specified fields allow JavaScript to be stored, which executes in other users’ browsers when they view the affected records. Exploitation requires authenticated access to the affected functionality. The code can alter the displayed content and perform actions within the context of the victim’s session. The list of features, parameters, and endpoints is as follows:
CVE-2026-108053: Nombre in ‘/CuentasCorrientes/Create’;
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Analysis
by VulDB Data Team • 11/03/2026
The vulnerability identified under CVE-2026-108053 represents a critical stored Cross-Site Scripting flaw within the Alosuite enterprise resource planning software, specifically targeting the delivery note and current accounts creation functionality. This security defect is located in the Nombre field of the /CuentasCorrientes/Create endpoint. The root cause lies in insufficient input validation and output encoding mechanisms during the processing of user-supplied data. When an authenticated attacker submits malicious JavaScript code as part of the account name or related delivery note details, the application fails to properly sanitize this input before storing it in the backend database. Consequently, when any other authorized user subsequently views records containing this tainted data, the browser interprets and executes the embedded script within the context of that victim’s active session. This behavior classifies the vulnerability as a classic stored XSS attack vector, where the malicious payload persists on the server side rather than being transient in the URL or request parameters.
From an operational perspective, the impact of this vulnerability is severe due to its ability to compromise user sessions and manipulate application state without direct interaction from the victim beyond viewing affected records. An attacker can exploit this flaw to steal sensitive session cookies, perform actions on behalf of the victim such as modifying financial data or creating unauthorized transactions, and potentially redirect users to phishing sites designed to harvest credentials. Because exploitation requires authenticated access, the threat actor must first compromise valid user credentials through methods like credential stuffing, password spraying, or social engineering. However, once inside the system, the persistence of the payload means that a single successful injection can affect multiple victims over an extended period until the malicious data is manually removed from the database. This amplifies the blast radius significantly compared to reflected XSS vulnerabilities and poses a substantial risk to the integrity and confidentiality of financial records managed by Alosuite users.
In terms of industry standard classifications, this vulnerability aligns with CWE-79: Improper Neutralization of Input During Web Page Generation, commonly known as Cross-site Scripting. Specifically, it falls under the stored variant where malicious scripts are permanently stored within target servers. Furthermore, from a tactical perspective relevant to threat intelligence frameworks like MITRE ATT&CK, this exploit maps to T1059: Command and Scripting Interpreter, particularly JavaScript execution in browser contexts, and potentially T1078: Valid Accounts if the initial access relies on compromised credentials. The ability to alter displayed content and perform actions within the victim’s session context also touches upon integrity violations described in CWE-243: Creation of a CHroot Jail Without Correctly Setuid Root or more broadly CWE-693: Protection Mechanism Failure, as the application fails to enforce its intended security policies regarding data handling.
To mitigate this vulnerability and prevent further exploitation, immediate remediation steps are required at both the code level and infrastructure layer. Developers must implement strict input validation on the Nombre field in the /CuentasCorrientes/Create endpoint, ensuring that only expected alphanumeric characters or specific safe symbols are accepted while rejecting any HTML tags or JavaScript event handlers. More critically, output encoding must be applied consistently whenever data retrieved from the database is rendered into HTML responses. Context-aware encoding techniques should be employed to neutralize special characters based on where they appear in the DOM structure. Additionally, implementing a Content Security Policy (CSP) header can provide an additional layer of defense by restricting the sources from which scripts are allowed to execute, thereby mitigating the impact even if some malicious content slips through validation checks. Regular security code reviews and automated static application security testing should be integrated into the development lifecycle to detect such sanitization failures early. For existing deployments, administrators should audit database records for any previously injected payloads and remove them while enforcing strong authentication policies to reduce the likelihood of initial unauthorized access by attackers seeking to plant these persistent threats.