content management system
The software behind a website that lets people publish and edit pages without touching code.
A content management system is the admin panel behind most of the web. You log in, write a post, upload a picture, hit publish, and the system turns that into pages for visitors. WordPress runs a large share of the world’s websites this way, and Drupal, Joomla and Typo3 cover much of the rest. The appeal is obvious: someone who has never written a line of code can run a site.
The security consequence is less obvious. Because these systems are everywhere and extended by thousands of third-party plugins, they are the single most attacked category of software on the internet, accounting for around a third of confirmed exploitation cases in 2026. Almost all of it targets installations that were never updated. Turning on automatic updates for the system and its plugins is the highest-value thing most site owners can do.