Joomla Security Checklist for Site Administrators
Verify software maintenance
Confirm Joomla core, every installed extension, the active template, PHP, database server, and hosting stack are maintained and supported. Apply stable security updates promptly after appropriate backup and testing. Joomla’s official security checklist emphasizes both regular backups and early updates as fundamental protections.
Review administrator access
Audit Super Users and other privileged groups. Remove accounts that are no longer needed, reduce permissions that are broader than the job requires, and use unique credentials. Enable multi-factor authentication for privileged users and protect the email accounts used for password recovery because those accounts can become an indirect path into Joomla.
Review extensions and templates
Inventory installed components, modules, plugins, packages, libraries, and templates. Uninstall software that is unused or abandoned. Record version and developer information for important third-party software and check security notices, including Joomla’s Vulnerable Extensions List where applicable, so known vulnerable versions are not left installed.
Check hosting and transport security
Confirm HTTPS is working without certificate errors and that Administrator traffic is also protected. Review PHP and database versions against the requirements for the Joomla branch in use. Keep hosting-panel, SSH or SFTP, DNS, CDN, and database credentials separate and protected; Joomla cannot compensate for a compromised hosting account.
Verify backup and recovery readiness
Confirm recent file and database backups exist outside the live site and perform periodic restoration tests. Know how to place the site offline, restore a clean backup, rotate credentials, and contact the host. A backup that has never been restored is an untested assumption rather than a complete recovery plan.
Review logs and unexpected changes
Check web-server access and error logs, Joomla logs, administrator accounts, installed extensions, and important configuration for unexplained changes. Investigate repeated authentication failures, unusual POST requests, unexpected files, or new privileged users. Preserve evidence before cleanup if compromise is suspected.
Repeat the checklist on a schedule
Security drifts as staff, extensions, hosting, and threats change. Run this checklist after major updates or migrations and on a regular maintenance schedule. Record the date, findings, actions, and unresolved risks so the next review starts from evidence rather than memory.
Need More Help with Joomla?
Still having trouble? Open a support ticket with QuantaCade Support and we'll be happy to help where we can.
Support priority is given to QuantaCade products, services, and customers. However, we're also happy to assist fellow Joomla users with general Joomla questions and troubleshooting when possible.
QuantaCade is an independent Joomla extension developer and is not official Joomla support. Some issues involving third-party extensions, hosting environments, server configurations, or other systems outside our development control may be beyond what we're able to resolve.