Upload plugin using wp-admin without ftp.
If you are not able to install plugin using wp-admin because of forbidden error or a permission issue, you simply change the permission of whole wordpress directory to fix it. That is very dangerous and a common security loophole.
Here is the minimum permission for your plugin directory which is enough to instal plugin using wp-admin.
Give 777 to wp-content/plugins and wp-content/upgrade Non-Recursively. It will allow admin to install plugin using wp-admin.
If you are not able to install plugin using wp-admin because of forbidden error or a permission issue, you simply change the permission of whole wordpress directory to fix it. That is very dangerous and a common security loophole.
Here is the minimum permission for your plugin directory which is enough to instal plugin using wp-admin.
Give 777 to wp-content/plugins and wp-content/upgrade Non-Recursively. It will allow admin to install plugin using wp-admin.