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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| klembot | twinejs | ≤ 2.12.0 | — |
References
- GitHub Issue #1706 issue-tracking
- https://github.com/klembot/twinejs product
- https://github.com/klembot/twinejs/blob/2.12.0/src/util/import.ts#L134-L136 technical-description
- https://github.com/klembot/twinejs/blob/2.12.0/src/electron/main-process/scratch-file.ts#L57-L63 technical-description
- https://github.com/klembot/twinejs/commit/8e8a2bef5b1e20c58b99d22a2a4d8d867fb421cb patch
- https://github.com/klembot/twinejs/commit/3a9af28cabe9684730beb8b578132cad9bb5bc60 patch
- VulnCheck Advisory: Twine 2 Desktop through 2.12.0 Arbitrary Code Execution via Imported Story Files third-party-advisory