CVE-2026-91078

{
  "etk_id": "ETK-2026-592",
  "cve_id": "CVE-2026-91078",
  "display_id": "CVE-2026-91078",
  "ghsa_id": "GHSA-mhjv-47jj-mxpp",
  "euvd_id": "EUVD-2026-91944",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated POS session takeover in TillKit",
  "summary": "TillKit versions before 1.0.5 can expose a privileged point-of-sale session when the privileged account retains its default PIN. An unauthenticated attacker could access customer or site-user data and alter store data through that session.",
  "mitigation": "Update TillKit to version 1.0.5 or later. Change privileged POS account PINs and limit exposure of the POS login endpoint where possible.",
  "vendor": null,
  "product": "TillKit",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 1.0.5"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.0.5"
      ],
      "package_name": "TillKit",
      "purl": null
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 8.2,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N",
  "epss_score": 0.0019,
  "epss_percentile": 0.0846,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": true,
  "pipeline_minutes": 47.19984995,
  "t0_at": "2026-10-03T06:00:27.173000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-04T22:05:28.314397+00:00",
      "days": 1.6701520995023147,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T06:00:27.173000+00:00",
      "url": null
    },
    "exploit": {
      "at": "2026-10-04T22:05:28.314397+00:00",
      "days": 1.6701520995023147,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T06:00:27.173000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-03T06:00:27.173000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T06:00:27.173000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-91078"
    }
  }
}