CVE-2026-87091

{
  "etk_id": "ETK-2026-447",
  "cve_id": "CVE-2026-87091",
  "display_id": "CVE-2026-87091",
  "ghsa_id": "GHSA-75wc-wvc7-9m96",
  "euvd_id": "EUVD-2026-91910",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored cross-site scripting in Welcart e-Commerce",
  "summary": "Welcart e-Commerce for WordPress through version 2.12.2 stores untrusted settlement-notification input that is later displayed in an administrative error-log view. An unauthenticated remote attacker can cause script to run when an administrator views the affected stored entry; the settlement-notification endpoint must be reachable.",
  "mitigation": "Update to a vendor release that addresses this issue when one is available. Until then, disable the plugin or restrict external access to its settlement-notification endpoint where payment-processing requirements permit.",
  "vendor": "uscnanbu",
  "product": "Welcart e-Commerce",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 2.12.2"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Welcart e-Commerce",
      "purl": null
    }
  ],
  "cwes": [
    79
  ],
  "cvss_score": 7.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
  "epss_score": 0.0031,
  "epss_percentile": 0.2289,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 31.58062165,
  "t0_at": "2026-10-03T05:29:17.586000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-03T11:30:23.177709+00:00",
      "days": 0.2507591632986111,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T05:29:17.586000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-03T05:29:17.586000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T05:29:17.586000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-87091"
    }
  }
}