An example of using execute-with-privileges verb of security command to bypass GUI for a CLI authorization prompt

exec-priv.sh

# This expects that you're already running as sudo'd / root account 

cat <<EOF | security -i
authorize -C adminUserNameHere com.apple.uninstalld.uninstall
execute-with-privileges /usr/sbin/uninstall /Applications/SomeMASapp.app
EOF

# In the example above, if you're already running as root / sudo'd admin,
# you still get a prompt for the password of the account in question.
# We aren't dodging proving we know the password - we're just doing it
# via the CLI instead of via the Authorization GUI dialog.

# Here's an alternate form where you're not sudo'd already:

cat <<EOF | sudo security -i
authorize -C adminUserNameHere com.apple.uninstalld.uninstall
execute-with-privileges /usr/sbin/uninstall /Applications/SomeMASapp.app
EOF

# In this version, you'll actually get prompted for a password twice -
# the first time for sudo, the second time for authorization