CVE-2026-6086 in StockAgile
Summary
by MITRE • 09/25/2026
Stored Cross-Site Scripting (XSS) vulnerability in StockAgile API and management panel. The vulnerability is present on the server side in REST endpoint '/inventory/configuration/serial-number-types' that allow the injection and persistence of malicious JavaScript code through parameters such as ‘code’, ‘name’, and other text fields. The scripts that are entered are not filtered or validated correctly before being displayed on the web panel that authenticated users can access. Exploiting this vulnerability could allow a remote, previously authenticated attacker to execute arbitrary JavaScript code.
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Analysis
by VulDB Data Team • 09/25/2026
The identified security flaw represents a classic Stored Cross-Site Scripting vulnerability within the StockAgile application infrastructure, specifically targeting both its REST API and associated management panel interfaces. This type of vulnerability is categorized under CWE-79 in the Common Weakness Enumeration framework, which defines improper neutralization of input during web page generation as a critical security risk. The core technical deficiency lies in the server-side processing logic for specific endpoints, most notably the '/inventory/configuration/serial-number-types' REST endpoint. When authenticated users submit data through parameters such as 'code', 'name', or other text-based fields, the application fails to adequately sanitize or validate these inputs before persisting them into the backend database. Consequently, malicious JavaScript payloads are stored alongside legitimate configuration data rather than being escaped or rejected by input validation routines.
The operational impact of this vulnerability is significant because it allows for a persistent attack vector that does not require immediate user interaction at the time of injection to take effect on subsequent victims. Once an attacker successfully injects a script via the API, the malicious code becomes part of the application's stored data. When any authenticated user subsequently accesses the management panel and views the affected configuration records, their browser automatically executes the embedded JavaScript in the context of the vulnerable web application. This execution occurs within the security privileges granted to that specific session, effectively bypassing same-origin policy protections. The attacker can leverage this capability to perform a wide range of malicious activities, including stealing sensitive session cookies or authentication tokens, hijacking user sessions to impersonate legitimate administrators, performing unauthorized actions on behalf of victims such as modifying inventory configurations or exporting data, and potentially redirecting users to phishing sites designed to harvest credentials further compromising the organization's security posture.
From an offensive security perspective, this vulnerability aligns with several techniques in the MITRE ATT&CK framework for enterprise environments. It directly corresponds to T1059.007, which covers JavaScript execution within web browsers, and can facilitate T1534, Internal Spearphishing if used to trick users into clicking malicious links embedded in the rendered page content. Furthermore, because the exploitation requires prior authentication, it highlights a failure in proper access control validation regarding input sanitization for privileged endpoints. The persistence of the payload means that even after the initial attacker has left the system, the threat remains active until the stored data is manually cleaned or the application logic is patched to properly encode output when rendering user-supplied content back into HTML responses.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. The most critical step is implementing strict input validation on all server-side endpoints that accept user-controlled data, ensuring that special characters such as angle brackets, quotes, and ampersands are properly encoded or escaped before storage. Additionally, output encoding should be applied consistently across the management panel to ensure that any dynamic content rendered in HTML contexts is neutralized against script execution. Implementing a Content Security Policy (CSP) header can also serve as an effective defense-in-depth measure by restricting the sources from which scripts are allowed to execute, thereby mitigating the impact of successful XSS attacks even if input validation fails. Developers should adopt parameterized queries or safe API libraries that handle encoding automatically and conduct regular code reviews focused on security hygiene practices related to web application development standards like OWASP Top Ten guidelines for injection prevention.