CVE-2026-90795 in Loan Management System
Summary
by MITRE • 09/14/2026
A vulnerability was determined in itsourcecode Loan Management System 1.0. The impacted element is an unknown function of the file navbar.php. Executing a manipulation of the argument page can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.
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Analysis
by VulDB Data Team • 09/14/2026
The identified vulnerability in itsourcecode Loan Management System version 1.0 represents a significant security risk stemming from improper input validation within the application's navigation component. Specifically, the flaw resides in an unknown function located within the navbar.php file, which is responsible for rendering the user interface's navigational elements. The core technical issue involves the failure to properly sanitize or validate the page argument before it is processed and subsequently reflected back into the HTML output sent to the client browser. This lack of sanitization allows an attacker to inject malicious scripts that are executed in the context of the victim's session, thereby facilitating a Cross-Site Scripting attack vector.
From a technical perspective, this vulnerability aligns with CWE-79, which classifies Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The attacker can manipulate the page parameter to include arbitrary JavaScript code or other executable content. When the vulnerable application processes this input without adequate filtering, the malicious script becomes part of the dynamic web page served to users. This execution occurs within the browser environment of any user who interacts with the compromised link or is redirected by an automated attack mechanism, granting the attacker the ability to execute scripts in the security context of the trusted website.
The operational impact of this vulnerability is severe due to its remote exploitability and public disclosure status. Because the flaw can be triggered remotely over a network connection without requiring prior authentication, it significantly lowers the barrier for entry for potential attackers. The fact that an exploit has been publicly disclosed means that automated scanning tools and malicious actors have ready-made methods to leverage this weakness against unpatched instances of the Loan Management System. Successful exploitation could lead to session hijacking, where the attacker steals cookies or other authentication tokens to impersonate legitimate users. It also enables credential theft through phishing techniques embedded in the injected scripts, as well as defacement of the application's interface and potential redirection of victims to malicious sites hosting malware.
This vulnerability is further contextualized by MITRE ATT&CK framework tactics related to Initial Access and Collection. The ability to execute arbitrary code via reflected input maps directly to techniques involving client-side injection attacks. Attackers can use this vector as a foothold within the organization's network perimeter, potentially leading to broader compromise if the Loan Management System holds sensitive financial data or serves as an entry point to more critical backend systems. The persistence of such vulnerabilities in open-source management systems often highlights gaps in secure coding practices during development and deployment phases.
To mitigate this risk, immediate remediation is required by developers maintaining instances of itsourcecode Loan Management System 1.0. The primary fix involves implementing robust input validation and output encoding for the page argument within navbar.php. Developers should ensure that all user-supplied data is strictly validated against a whitelist of expected values before being used in any context, particularly when generating HTML content. Additionally, employing Content Security Policy headers can help mitigate the impact of successful XSS attacks by restricting the sources from which scripts are allowed to load and execute. Organizations relying on this software should also consider upgrading to patched versions if available or replacing the system with a more securely maintained alternative until proper patches are applied. Regular security audits and static code analysis tools can further assist in identifying similar flaws across other components of the application architecture.