CVE-2026-105220highCWE-79

CVE-2026-105220: high-severity vulnerability in klembot twinejs

Twine 2 Desktop through 2.12.0 Arbitrary Code Execution via Imported Story Files

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.5epss 0.2%
exploitation probability
0.2%top 96% of all CVEs
observed exploitation
nono source reports it
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/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
klembot · twinejs
References
https://github.com/klembot/twinejshttps://github.com/klembot/twinejs/blob/2.12.0/src/electron/main-process/scratch-file.ts#L57-L63https://github.com/klembot/twinejs/blob/2.12.0/src/util/import.ts#L134-L136https://github.com/klembot/twinejs/commit/3a9af28cabe9684730beb8b578132cad9bb5bc60https://github.com/klembot/twinejs/commit/8e8a2bef5b1e20c58b99d22a2a4d8d867fb421cbhttps://github.com/klembot/twinejs/issues/1706https://www.vulncheck.com/advisories/twine-2-desktop-through-2.12.0-arbitrary-code-execution-via-imported-story-files