Joomla 5 Full Package 5.4.2

Category: Core

Version: 5.4.2

Date: 06 January 2026

Download type: Free

Compatibility: J5

Ivan Petrov

June 25, 2026

What I love about working with the guys at Joomla Center, besides their excellent knowledge of their craft, is their patience and politeness. No irritation at stupid questions, no arrogance, no eye-rolling, no heavy sighs. On the contrary, they explain things very politely and clearly, give recommendations, do things quickly and competently, and if something goes wrong, they'll fix it just as quickly. Five stars on all counts! As they say now, I'm hooked!

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kennel avanzar

June 15, 2026

I want to express my sincere gratitude to the Joomla Center team for their professional assistance! After my site was hacked, their specialists quickly identified and eliminated all the consequences of the attack, patched vulnerabilities, updated the software, and restored the site to its original state. I was especially pleased that the work was not only done efficiently but also with detailed explanations of all the steps taken.

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Solnyshko

June 05, 2026

You guys are the best. You're always there to help and solve any problem. Today, a cybersecurity information site was down. Anton solved the problem in a couple of hours. Great job. I highly recommend you!!!

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Help The Children SKD

December 5, 2025

We thank the Joomla Center team for their professionalism, the excellently crafted training course, and their ongoing support.
Special thanks to Anton for his responsiveness, kindness, and immediate assistance with our website.
We wish you success in your endeavors 🤗

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Nikolay Mosunov

June 17, 2025

Thanks to Anton and the Joomla Training Center for their excellent work. They upgraded my sites from the old Joomla to the new one. Everything works perfectly, even better than before. They professionally fixed numerous errors. I can only recommend them. They offer truly excellent quality and speed at relatively low prices.

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Security	Fixed inadequate content filtering for data URLs that could allow XSS attacks through image tags.
Security	Fixed XSS vulnerabilities in the Page Break and Page Navigation plugins.
Addition	Added full support for PHP 8.5.
Addition	Added PHP 8.5 to unit and integration tests.
Addition	Added a pull request targeting section to the README file.
Fixed	Fixed the static getTemplate call in mail templates.
Fixed	Updated the use of the fputcsv function for PHP 8.4 compatibility.
Fixed	Fixed the PHP 8.5 version check.
Fixed	Removed the remaining deprecated JText calls.
Fixed	Fixed a 404 error in the web services component configuration route when a component name contains numbers.
Fixed	Aligned the Envelope-From and Return-Path headers with the sender address in MailTemplateFactory.
Fixed	Fixed the request format condition in MenusHelper that caused a deprecation warning.
Fixed	The success and message types are now correctly mapped to SymfonyStyle in ConsoleApplication.
Fixed	Removed the sidebar wrapper border and added a box shadow to the autumn dark-mode colour scheme.
Fixed	Updated indirect development dependencies to resolve security vulnerabilities reported by NPM Audit.
Fixed	Fixed Smart Search taxonomy filters being overwritten when multiple filters have identical titles.
Fixed	Articles are no longer loaded in the blog layout when article loading is disabled in the configuration.
Fixed	Fixed a regular expression in DocumentRenderer.php.
Fixed	The latest action logs module now loads the language files of the corresponding extensions.
Fixed	Fixed the snooze function in the Joomla end-of-support notification plugin.
Fixed	Fixed the MySQL 8 error caused by an illegal argument being passed to a regular expression in the banners model.
Fixed	Further updated indirect development dependencies to resolve NPM security vulnerabilities.
Fixed	Fixed scheduled-task notifications for Joomla installations updated from versions earlier than Joomla 5.3.
Fixed	Automatic update finalisation errors are now exposed in API responses.
Fixed	Removed an unnecessary setError call with an empty value.
Fixed	Updated development dependencies to resolve security vulnerabilities reported by NPM Audit.
Fixed	Removed the obsolete skin creator link from TinyMCE.
Fixed	Fixed the subform field dropdown incorrectly displaying the current field.
Note	Joomla 5.4.2 is a security and bug-fix release.
Note	Joomla 5.4.2 was released together with Joomla 6.0.2.
Note	CVE-2025-63082 has moderate severity and a low probability of exploitation.
Note	CVE-2025-63083 has moderate severity and a low probability of exploitation.
Note	A complete backup of the website files and database is recommended before updating.
Note	The update should be tested on a copy of the production website before deployment.
Note	When updating from a Joomla version earlier than 4.4, upgrade to Joomla 4.4 before updating to Joomla 5.

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