{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.12.0"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "020b8dcd308d0103bb8ca1f547f2eaae247f17e8"
            },
            {
              "fixed": "3a9af28cabe9684730beb8b578132cad9bb5bc60"
            },
            {
              "fixed": "8e8a2bef5b1e20c58b99d22a2a4d8d867fb421cb"
            }
          ],
          "repo": "https://github.com/klembot/twinejs",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105220.json"
  },
  "details": "Twine 2 desktop through 2.12.0 contains a cross-site scripting vulnerability in importStories() that executes markup from imported story files in the editor window. Attackers can craft a story file whose script calls the twineElectron openWithScratchFile IPC bridge to write and open a .bat file, executing code as the user.",
  "id": "CVE-2026-105220",
  "modified": "2026-10-07T02:31:08.265301246Z",
  "published": "2026-10-04T22:31:46.420Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105220.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105220"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/twine-2-desktop-through-2.12.0-arbitrary-code-execution-via-imported-story-files"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/klembot/twinejs/issues/1706"
    },
    {
      "type": "FIX",
      "url": "https://github.com/klembot/twinejs/commit/3a9af28cabe9684730beb8b578132cad9bb5bc60"
    },
    {
      "type": "FIX",
      "url": "https://github.com/klembot/twinejs/commit/8e8a2bef5b1e20c58b99d22a2a4d8d867fb421cb"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/klembot/twinejs"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/klembot/twinejs/blob/2.12.0/src/electron/main-process/scratch-file.ts#L57-L63"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/klembot/twinejs/blob/2.12.0/src/util/import.ts#L134-L136"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Twine 2 Desktop through 2.12.0 Arbitrary Code Execution via Imported Story Files"
}