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CVE-2023-2317

Description

DOM-based XSS in updater/update.html in Typora before 1.6.7 on Windows and Linux allows a crafted markdown file to run arbitrary JavaScript code in the context of Typora main window via loading typora://app/typemark/updater/update.html in tag. This vulnerability can be exploited if a user opens a malicious markdown file in Typora, or copies text from a malicious webpage and paste it into Typora.

POC

Reference

- https://starlabs.sg/advisories/23/23-2317/

Github

- https://github.com/d4n-sec/d4n-sec.github.io