CVE-2026-105862

{
  "etk_id": "ETK-2026-839",
  "cve_id": "CVE-2026-105862",
  "display_id": "CVE-2026-105862",
  "ghsa_id": "GHSA-2pwp-2369-8fg3",
  "euvd_id": "EUVD-2026-93508",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored SVG cross-site scripting in payload uploads",
  "summary": "Payload versions before 3.90.0, and 4.0.0 canary releases before 4.0.0-canary.34, can retain unsafe SVG uploads in collections that permit SVG files. An attacker who can upload such a file may cause script execution when another user downloads and opens it. Exposure requires downloadable SVG uploads to be enabled.",
  "mitigation": "Upgrade payload to 3.90.0 or later, or to 4.0.0-canary.34 or later on the canary line. Until upgraded, block SVG uploads or force SVG responses to download as attachments with a restrictive content security policy.",
  "vendor": "payloadcms",
  "product": "payload",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 3.90.0"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "3.90.0"
      ],
      "package_name": "payload",
      "purl": "pkg:npm/payload"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 4.0.0-canary.0, < 4.0.0-canary.34"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "4.0.0-canary.34"
      ],
      "package_name": "payload",
      "purl": "pkg:npm/payload"
    }
  ],
  "cwes": [
    79
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
  "epss_score": 0.0027,
  "epss_percentile": 0.1829,
  "epss_asof": "2026-10-21",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "mechanism_verified",
  "exploit": false,
  "pipeline_minutes": 40.870299116666665,
  "t0_at": "2026-10-06T16:37:59.487000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-08T02:11:23.411629+00:00",
      "days": 1.3981935720949075,
      "is_lower_bound": false,
      "measured_at": "2026-10-06T16:37:59.487000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-06T16:37:59.487000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-06T16:37:59.487000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-105862"
    }
  }
}