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.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
klembot twinejs unaffected
Version Status Constraints
0 affected ≤ 2.12.0

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/klembot/twinejs cve-icon cve-icon
https://github.com/klembot/twinejs/blob/2.12.0/src/electron/main-process/scratch-file.ts#L57-L63 cve-icon cve-icon
https://github.com/klembot/twinejs/blob/2.12.0/src/util/import.ts#L134-L136 cve-icon cve-icon
https://github.com/klembot/twinejs/commit/3a9af28cabe9684730beb8b578132cad9bb5bc60 cve-icon cve-icon
https://github.com/klembot/twinejs/commit/8e8a2bef5b1e20c58b99d22a2a4d8d867fb421cb cve-icon cve-icon
https://github.com/klembot/twinejs/issues/1706 cve-icon cve-icon
https://www.vulncheck.com/advisories/twine-2-desktop-through-2.12.0-arbitrary-code-execution-via-imported-story-files cve-icon cve-icon
History

Sun, 04 Oct 2026 22:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Twine 2 Desktop through 2.12.0 Arbitrary Code Execution via Imported Story Files
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-04T22:31:46.420Z

Reserved: 2026-10-04T13:04:00.479Z

Link: CVE-2026-105220

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-04T23:16:59.627

Modified: 2026-10-04T23:16:59.627

Link: CVE-2026-105220

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-04T23:30:21Z

Weaknesses