New bug discovered in macOS High Sierra allows unlocking the App Store System Preferences by any password.
App Store System Preferences accept any password when system logged in with local admin Privilege.
This could be very dangerous if anyone already has your system permission and they can able to download any apps, modifying the apps store setting, also they can disable auto update for future macOS update.
This is another critical macOS High Sierra bug and an earlier bug with MacOS High Sierra was uncovered on Nov 28 which allows anyone can login local admin account with an empty password. This bug allows anyone to login to the local admin account with the username “root” and no password needed.
Read full news article on GBHackers