CVE-2026-100382

{
  "etk_id": "ETK-2026-587",
  "cve_id": "CVE-2026-100382",
  "display_id": "CVE-2026-100382",
  "ghsa_id": "GHSA-vwh3-jq98-4w28",
  "euvd_id": "EUVD-2026-87348",
  "status": "published",
  "anchor_state": "anchored",
  "title": "OS command injection in MediaWiki ExternalData Extension",
  "summary": "MediaWiki installations using the ExternalData extension before version 3.7 are affected by an OS command injection flaw. An attacker may be able to execute operating-system commands through the vulnerable extension; the evidence does not establish the required access level or request conditions.",
  "mitigation": "Upgrade the MediaWiki ExternalData extension to version 3.7 or later. Until upgraded, reduce exposure by disabling the extension where it is not required.",
  "vendor": "wikimedia foundation",
  "product": "Mediawiki - ExternalData Extension",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= *, < 3.7"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "3.7"
      ],
      "package_name": "Mediawiki - ExternalData Extension",
      "purl": null
    }
  ],
  "cwes": [
    78
  ],
  "cvss_score": 10,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
  "epss_score": 0.0095,
  "epss_percentile": 0.6057,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 27.205949166666667,
  "t0_at": "2026-09-25T21:04:02.848000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-04T21:03:37.434626+00:00",
      "days": 8.999705863726852,
      "is_lower_bound": false,
      "measured_at": "2026-09-25T21:04:02.848000+00:00",
      "url": null
    },
    "kev": {
      "at": "2026-09-27T00:00:00+00:00",
      "days": 2,
      "is_lower_bound": false,
      "measured_at": "2026-09-25T21:04:02.848000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2026-100382"
    },
    "public_poc": {
      "at": "2026-09-27T15:31:44+00:00",
      "days": 1.7692262962962964,
      "is_lower_bound": false,
      "measured_at": "2026-09-25T21:04:02.848000+00:00",
      "url": "https://github.com/nth347/mediawiki-CVE-2026-100382"
    },
    "trigger_signal": {
      "at": "2026-09-27T00:00:00+00:00",
      "days": 1.1221892592592593,
      "is_lower_bound": false,
      "measured_at": "2026-09-25T21:04:02.848000+00:00",
      "url": "https://vulncheck.com/cve/CVE-2026-100382"
    }
  }
}