CVE-2026-105123

{
  "etk_id": "ETK-2026-512",
  "cve_id": "CVE-2026-105123",
  "display_id": "CVE-2026-105123",
  "ghsa_id": "GHSA-r3hg-hgx7-58g9",
  "euvd_id": "EUVD-2026-92043",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authenticated arbitrary file write in wcms media upload",
  "summary": "wcms through 3.18.0 does not adequately validate paths in its media upload API. An authenticated editor can write or delete arbitrary files, potentially leading to server-side code execution when uploaded files are handled by the web server. Exploitation requires editor-level authentication.",
  "mitigation": "Upgrade to a vendor release that corrects the media upload path validation when one is available; no fixed version is recorded in the advisory. Until then, restrict editor access and prevent the web server from executing uploaded media files.",
  "vendor": "vincent-peugnet",
  "product": "wcms",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 3.18.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "wcms",
      "purl": null
    }
  ],
  "cwes": [
    434
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0052,
  "epss_percentile": 0.4274,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 28.257651816666666,
  "t0_at": "2026-10-03T22:30:12.394000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-04T00:04:22.536333+00:00",
      "days": 0.0653951658912037,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T22:30:12.394000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-03T22:30:12.394000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-03T22:30:12.394000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-105123"
    }
  }
}