CVE-2026-58390

{
  "etk_id": "ETK-2026-1695",
  "cve_id": "CVE-2026-58390",
  "display_id": "CVE-2026-58390",
  "ghsa_id": "GHSA-26cj-h9rj-g5pf",
  "euvd_id": "EUVD-2026-102136",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored cross-site scripting in OPNsense OpenVPN status pages",
  "summary": "Affected OPNsense core OpenVPN status pages may render a connected client's externally managed name in an unsafe HTML attribute. A valid OpenVPN user who can obtain a specially formed RADIUS or LDAP username could cause browser-side code to execute when an administrator opens an affected status page. The issue requires username-as-common-name and an identity backend that allows the attacker to provision such a username.",
  "mitigation": "Upgrade opnsense/core to 26.1.11, 26.4.1p1 or later.",
  "vendor": "opnsense",
  "product": "core",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 26.1.10",
        "<= 26.4.1"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "26.1.11",
        "26.4.1p1"
      ],
      "package_name": "opnsense/core",
      "purl": null
    }
  ],
  "cwes": [
    79
  ],
  "cvss_score": 8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
  "epss_score": 0.0048,
  "epss_percentile": 0.3986,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 16.49512455,
  "t0_at": "2026-10-15T15:21:09.883000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-07-01T13:34:46+00:00",
      "days": -106.07388753472222,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T15:21:09.883000+00:00",
      "url": "https://github.com/opnsense/core/security/advisories/GHSA-26cj-h9rj-g5pf"
    },
    "trigger_signal": {
      "at": "2026-10-15T15:21:09.883000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T15:21:09.883000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-58390"
    }
  }
}