CVE-2025-40719 in Gateway
Summary
by MITRE • 07/08/2025
Reflected Cross-site Scripting (XSS) vulnerability in versions prior to 4.7.0 of Quiter Gateway by Quiter. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by sending a malicious URL trhough the id_concesion parameter in /FacturaE/VerFacturaPDF.
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Analysis
by VulDB Data Team • 10/18/2025
The CVE-2025-40719 vulnerability represents a critical reflected cross-site scripting flaw in Quiter Gateway versions prior to 4.7.0, specifically affecting the /FacturaE/VerFacturaPDF endpoint. This vulnerability resides in the handling of the id_concesion parameter, which fails to properly sanitize user input before incorporating it into web responses. The flaw enables attackers to inject malicious JavaScript code that executes within the victim's browser context when they click on a crafted malicious URL. This type of vulnerability falls under CWE-79 which specifically addresses improper neutralization of input during web page generation, making it a classic example of reflected XSS where malicious scripts are reflected off a web server back to a user's browser.
The operational impact of this vulnerability extends beyond simple script execution as it provides attackers with the capability to perform session hijacking, steal sensitive information, manipulate web page content, and potentially redirect users to malicious sites. The vulnerability affects the web application's authentication and authorization mechanisms by allowing unauthorized code execution in the context of authenticated users. Attackers can leverage this flaw to exploit user sessions, access sensitive data, or perform actions on behalf of legitimate users. The attack vector requires minimal user interaction since the malicious payload is embedded within a URL that, when clicked, automatically executes the injected script in the victim's browser.
Security professionals should consider this vulnerability in the context of the ATT&CK framework under the T1566 technique for initial access through spearphishing attachments or links, and potentially T1059 for command and control through script execution. The vulnerability's remediation involves implementing proper input validation and output encoding mechanisms specifically for the id_concesion parameter in the /FacturaE/VerFacturaPDF endpoint. Organizations should immediately upgrade to Quiter Gateway version 4.7.0 or later, which contains the necessary patches to address this vulnerability. Additionally, implementing Content Security Policy headers, input sanitization, and parameter validation can provide defense-in-depth measures to prevent similar issues. The vulnerability demonstrates the critical importance of proper input validation in web applications and highlights the necessity of regular security updates and vulnerability assessments to maintain application security posture.