Medium
Security advisory
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by exploiting insufficient input validation in the host parameter. Attackers can submit crafted payloads through POST requests to diag_traceroute.php to execute arbitrary JavaScript in the context of a user's browser session.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-25372
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:37 UTC · Revision 1
Source evidence
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by exploiting insufficient input validation in the host parameter. Attackers can submit crafted payloads through POST requests to diag_traceroute.php to execute arbitrary JavaScript in the context of a user's browser session.
osv:CVE-2019-25372
Complete source record
{
"id": "6ddf174ca0d355de2189a53c75381c9727e420ccd4840af0b7c631706fb21c6f",
"url": "https://osv.dev/vulnerability/CVE-2019-25372",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-25372",
"summary": "OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by exploiting insufficient input validation in the host parameter. Attackers can submit crafted payloads through POST requests to diag_traceroute.php to execute arbitrary JavaScript in the context of a user's browser session.",
"evidence": "osv:CVE-2019-25372",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-25372",
"aliases": [
"CVE-2019-25372"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/opnsense/core",
"type": "GIT",
"events": [
{
"introduced": "33279d1d2410a4bfa2896efd2f033b8234396ad8"
},
{
"last_affected": "33279d1d2410a4bfa2896efd2f033b8234396ad8"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:opnsense:opnsense:19.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "19.1"
},
{
"last_affected": "19.1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"19.1",
"19.1.r"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-25372.json"
}
}
],
"modified": "2026-10-24T10:30:31.306372185Z",
"provider": "osv",
"references": [
"https://opnsense.org",
"https://forum.opnsense.org/index.php?topic=11469.0",
"https://www.vulncheck.com/advisories/opnsense-reflected-xss-via-diagtraceroutephp",
"https://www.exploit-db.com/exploits/46351"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-25372",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 432767,
"published_at": "2026-02-15T14:16:06.897+00:00"
}