CVE-2019-25377 – OPNsense 19.1 Reflected XSS via system_advanced_sysctl.php

CVE ID : CVE-2019-25377

Published : Feb. 15, 2026, 2:16 p.m. | 16 minutes ago

Description : OPNsense 19.1 contains a reflected cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject malicious scripts via the value parameter. Attackers can craft POST requests with script payloads in the value parameter to execute JavaScript in the context of authenticated user sessions.

Severity: 5.4 | MEDIUM

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