CVE-2026-103522

{
  "etk_id": "ETK-2026-1442",
  "cve_id": "CVE-2026-103522",
  "display_id": "CVE-2026-103522",
  "ghsa_id": "GHSA-fr55-rfpm-h943",
  "euvd_id": "EUVD-2026-97475",
  "status": "published",
  "anchor_state": "anchored",
  "title": "MIME type validation bypass in Thelia banner uploads",
  "summary": "Thelia 2.6.0 banner uploads rely on client-provided MIME type information when deciding whether a file is an image. An attacker with administrative access could submit executable content as an image and run code on the server.",
  "mitigation": "Restrict administrative access and configure banner-upload storage so uploaded files cannot be executed as scripts. Replace MIME-only validation with server-side file-content checks; no fixed version is recorded.",
  "vendor": "Thelia",
  "product": "Thelia",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 2.6.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Thelia",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 7.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0045,
  "epss_percentile": 0.3772,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 8.63126965,
  "t0_at": "2026-10-12T14:53:34.695000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-12T14:53:34.695000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-12T14:53:34.695000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-103522"
    }
  }
}