CVE-2026-105220

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.

CVSS 4.0

8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-10-04

Modified

2026-10-06

Record from

the NVD, synced 2026-10-19

References

• https://github.com/klembot/twinejs
• https://github.com/klembot/twinejs/blob/2.12.0/src/electron/main-process/scratch-file.ts#L57-L63
• https://github.com/klembot/twinejs/blob/2.12.0/src/util/import.ts#L134-L136
• https://github.com/klembot/twinejs/commit/3a9af28cabe9684730beb8b578132cad9bb5bc60
• https://github.com/klembot/twinejs/commit/8e8a2bef5b1e20c58b99d22a2a4d8d867fb421cb

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