CVE-2025-40721: Quiter Gateway

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

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_factura parameter in /<Client>FacturaE/listado_facturas_ficha.jsp.

Affected products

• Quiter Quiter Gateway: before 4.7.0 (fixed in 4.7.0)

Published 2025-07-08. Last modified 2026-06-17.