CVE-2026-104979

{
  "etk_id": "ETK-2026-700",
  "cve_id": "CVE-2026-104979",
  "display_id": "CVE-2026-104979",
  "ghsa_id": "GHSA-hh2r-3hwp-mvq3",
  "euvd_id": "EUVD-2026-92538",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored cross-site scripting in Plane intake issues",
  "summary": "Plane versions before 1.4.0 do not adequately sanitize descriptions submitted through public intake issues. An authenticated user can store malicious HTML where intake is enabled on a published DeployBoard; if a project member or closed-item viewer follows the content, code may run in their session and expose their API token.",
  "mitigation": "Upgrade makeplane/plane to version 1.4.0 or later. Until upgraded, disable intake on published DeployBoards and avoid opening untrusted intake issue links.",
  "vendor": "makeplane",
  "product": "plane",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.3.1"
      ],
      "ecosystem": "other",
      "fixed_versions": [
        "1.4.0"
      ],
      "package_name": "makeplane/plane",
      "purl": null
    }
  ],
  "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": 0.0036,
  "epss_percentile": 0.282,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 62.16755795,
  "t0_at": "2026-10-05T17:49:53.030000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-09-28T07:05:01+00:00",
      "days": -7.447824421296296,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T17:49:53.030000+00:00",
      "url": "https://github.com/makeplane/plane/security/advisories/GHSA-hh2r-3hwp-mvq3"
    },
    "trigger_signal": {
      "at": "2026-10-05T17:49:53.030000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T17:49:53.030000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-104979"
    }
  }
}