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Security Database

CVE

CWE

Training

CVE-2019-25375

Published: Feb 15, 2026

Modified: May 24, 2026

PUBLISHED

CVSS v3.1

6.1

MEDIUM

Description

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.

Vendor	Product	Versions
Opnsense	OPNsense	affected `19.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

ExploitDB-46351

exploit

OPNsense Official Website

product

OPNsense 19.1.1 Release Announcement

patch

VulnCheck Advisory: OPNsense 19.1 Reflected XSS via monit interface

third-party-advisory

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