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HIGH

CVE-2026-105220

CVSS v3

7.8

HIGH

EPSS Score

—

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2026-10-04
Last Modified
2026-10-05

Frequently asked questions

What is 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.

Is CVE-2026-105220 actively exploited?

Active exploitation of CVE-2026-105220 has not been confirmed.

What is the CVSS score for CVE-2026-105220?

CVE-2026-105220 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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