CVE-2026-103354

{
  "etk_id": "ETK-2026-550",
  "cve_id": "CVE-2026-103354",
  "display_id": "CVE-2026-103354",
  "ghsa_id": "GHSA-fqfj-m5mc-j28g",
  "euvd_id": "EUVD-2026-92082",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored cross-site scripting in Kadence Blocks",
  "summary": "Kadence Blocks versions through 3.7.11.1 are affected by a stored cross-site scripting flaw. An attacker able to supply data to the affected input could cause script content to be retained and later run in another user's browser; the advisory does not specify the required access level.",
  "mitigation": "Restrict untrusted users from creating or modifying Kadence Blocks content until an update is deployed. Upgrade to a vendor release that documents a resolution after verifying it addresses this issue.",
  "vendor": "Liquid Web / StellarWP",
  "product": "Gutenberg Blocks by Kadence Blocks",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 3.7.11.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "kadence-blocks",
      "purl": null
    }
  ],
  "cwes": [
    79
  ],
  "cvss_score": 7.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
  "epss_score": 0.0015,
  "epss_percentile": 0.0347,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 60.135938966666664,
  "t0_at": "2026-10-04T07:00:42.870000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-04T10:44:13.774863+00:00",
      "days": 0.15521880628472223,
      "is_lower_bound": false,
      "measured_at": "2026-10-04T07:00:42.870000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-04T07:00:42.870000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-04T07:00:42.870000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-103354"
    }
  }
}