CVE-2019-25374CWE-79

OPNsense 19.1 Reflected XSS via vpn_ipsec_settings.php

Medium · published February 15, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
29.5
In the wild
Unconfirmed
What it is

OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by exploiting the passthrough_networks parameter in vpn_ipsec_settings.php. Attackers can craft POST requests with JavaScript payloads in the passthrough_networks parameter to execute arbitrary code in users' browsers.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00368 · 29.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-15T13:58Z
EPSS history
Timeline
  • 15 FEB 13:58Z
    OPNsense 19.1 Reflected XSS via vpn_ipsec_settings.php
    cvelistv5