CVE-2019-25375

OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted input to the mailserver parameter. Attackers can send POST requests to the monit interface with JavaScript payloads in the mailserver parameter to execute arbitrary code in users' browsers.
Configurations

Configuration 1 (hide)

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

History

18 Feb 2026, 19:11

Type Values Removed Values Added
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-reflected-xss-via-monit-interface - () https://www.vulncheck.com/advisories/opnsense-reflected-xss-via-monit-interface - Third Party Advisory
First Time Opnsense opnsense
Opnsense

18 Feb 2026, 17:52

Type Values Removed Values Added
Summary
  • (es) OPNsense 19.1 contiene una vulnerabilidad de cross-site scripting reflejado que permite a atacantes no autenticados inyectar scripts maliciosos al enviar una entrada manipulada al parámetro mailserver. Los atacantes pueden enviar solicitudes POST a la interfaz monit con cargas útiles de JavaScript en el parámetro mailserver para ejecutar código arbitrario en los navegadores de los usuarios.

15 Feb 2026, 14:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-02-15 14:16

Updated : 2026-02-18 19:11


NVD link : CVE-2019-25375

Mitre link : CVE-2019-25375

CVE.ORG link : CVE-2019-25375


JSON object : View

Products Affected

opnsense

  • opnsense
CWE
CWE-79

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