CVE-2019-25369

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2019-25369
OPNsense 19.1 contains a stored cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject persistent malicious scripts via the tunable parameter. Attackers can submit POST requests with script payloads that are stored and executed in the context of authenticated user sessions when the page is viewed.

6.4 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://forum.opnsense.org/index.php?topic=11469.0 Release Notes
https://opnsense.org Product
https://www.exploit-db.com/exploits/46351 Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/opnsense-stored-xss-via-systemadvancedsysctlphp Broken Link
Configurations

Configuration 1 (hide)

cpe:2.3:a:opnsense:opnsense:19.1:*:*:*:*:*:*:*
History

18 Feb 2026, 19:15

Type Values Removed Values Added
First Time Opnsense opnsense
Opnsense
CPE cpe:2.3:a:opnsense:opnsense:19.1:*:*:*:*:*:*:*
References () https://forum.opnsense.org/index.php?topic=11469.0 - () https://forum.opnsense.org/index.php?topic=11469.0 - Release Notes
References () https://opnsense.org - () https://opnsense.org - Product
References () https://www.exploit-db.com/exploits/46351 - () https://www.exploit-db.com/exploits/46351 - Exploit, Third Party Advisory, VDB Entry
References () https://www.vulncheck.com/advisories/opnsense-stored-xss-via-systemadvancedsysctlphp - () https://www.vulncheck.com/advisories/opnsense-stored-xss-via-systemadvancedsysctlphp - Broken Link

18 Feb 2026, 17:52

Type Values Removed Values Added
Summary
  • (es) OPNsense 19.1 contiene una vulnerabilidad de cross-site scripting almacenado en el endpoint system_advanced_sysctl.php que permite a los atacantes inyectar scripts maliciosos persistentes a través del parámetro tunable. Los atacantes pueden enviar solicitudes POST con cargas útiles de script que se almacenan y ejecutan en el contexto de sesiones de usuario autenticadas cuando se visualiza la página.

15 Feb 2026, 14:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-15 14:16

Updated : 2026-02-18 19:15

NVD link : CVE-2019-25369

Mitre link : CVE-2019-25369

CVE.ORG link : CVE-2019-25369

JSON object : View

Products Affected

opnsense

  • opnsense
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')