CVE-2019-25374

6.1 MEDIUM
Published: February 15, 2026 Modified: February 18, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://forum.opnsense.org/index.php?topic=11469.0
Source: disclosure@vulncheck.com
Release Notes
https://opnsense.org
Source: disclosure@vulncheck.com
Product
https://www.exploit-db.com/exploits/46351
Source: disclosure@vulncheck.com
Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/opnsense-reflected-xss-via-vpnipsecsettingsphp
Source: disclosure@vulncheck.com
Broken Link

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.1 / 10.0
EPSS (Exploit Probability)
0.0%
1th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-79

Affected Vendors

opnsense

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