WPMS Sidebar Login Widget
wpms-sidebar-login-widget
Adds a sidebar widget to the main site of a WPMU/WPMS install.
External Database Authentication Reloaded
external-db-auth-reloaded
A plugin that allows the use of an external database (MySQL, PostgreSQL, MSSQL, and more) for authentication into WordPress.
WPMS Site Maintenance Mode
wpms-site-maintenance-mode
Provides an interface to make a WPMS network unavailable to everyone during maintenance, except the admin.
Whisper Comment Reloaded
whisper-comment-reloaded
Whisper Comment Reloaded is a WordPress plugin for commenters to control comment visibility for other viewers.
WP aMember Dashboard Widget
wp-amember-dashboard-widget
Adds aMember account info to your WP/WPMU/WPMS dashboard. Users will be able to have some of their payment account info in their dashboard.
Check plugin security before you install.
Every plugin gets the full treatment — vulnerabilities, code analysis, real-world exposure, and a transparent score breakdown.