Is CVE-2026-105220 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-105220?

CVE-2026-105220 has a CVSS v3 severity of HIGH (7.8).

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CVE-2026-105220

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.