CVE-2019-25377

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

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.

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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:L/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

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.4 / 10.0
EPSS (Exploit Probability)
0.0%
1th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

opnsense