CVE-2019-25373CWE-79

OPNsense 19.1 Stored XSS via firewall_rules_edit.php

Medium · published February 15, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
14.0
In the wild
Unconfirmed
What it is

OPNsense 19.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting crafted input to the category parameter. Attackers can send POST requests to firewall_rules_edit.php with script payloads in the category field to execute arbitrary JavaScript in the browsers of other users accessing firewall rule pages.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00238 · 14.0th 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 Stored XSS via firewall_rules_edit.php
    cvelistv5