Joomla! 3.9.21 Security Release announced

joomla help support cheshire manchester merseyside north west ukRelease date: 25 August 2020.

Joomla! 3.9.21 is a SECURITY FIX which addresses THREE vulnerabilities.

This release includes a Post Installation Message recommending that you edit your website's HTACCESS file.

See the Release Notes at the link below.

Read more: Joomla! 3.9.21 Release News.

Read more: Joomla! 3.9.21 Post Installation Message.


Addressed Vulnerabilities

Low Priority

Core - XSS in mod_latestactions (affecting Joomla! 3.9.0 through 3.9.20).
Core - Open redirect in com_content vote feature (affecting Joomla! 3.0.0 through 3.9.20).
Core - Directory traversal in com_media (affecting Joomla! 2.5.0 through 3.9.20).


Back up before updating is highly recommended

Protect your assets.

Perform a FULL backup of your website (database and files) BEFORE updating the Joomla! CMS and/or its extensions.

Read more: How to back up your website.

Read more: How to update your Joomla! CMS & its extensions.


Make Joomla! CMS Security YOUR #1 Priority

joomla support cheshire manchester merseyside north west ukWe offer Joomla! coaching, help and support to businesses and organisations across Cheshire, Manchester, Merseyside, North West England & the UK.

Learn how to manage Joomla! website security.