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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2019-25372

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

CVE-2019-25372

core-osv · Original source

Published 15 Feb 2026, 14:16 UTC

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"
}