Joomla websites that are properly maintained can protect from hackers by staying updated, as hackers are constantly looking for new ways to exploit Joomla websites if not updated regularly. Don’t fall for their schemes by neglecting to keep yours updated – otherwise hackers could take over!
White screens on your website are never welcome news and may be caused by one or more third-party Joomla plugins. Here are some of the most frequently occurring fatal flaws with Joomla:
1. Insufficient memory
Joomla is an open source content management system with powerful features that make it ideal for website building and management, integrating easily into other web apps, and easy updates. Like all software however, it does contain some bugs which may cause serious disruptions on websites if they occur – some can even lead to complete crashes! Unfortunately these bugs cannot always be avoided entirely but must be managed closely.
One of the more frequent errors encountered by Joomla users is an “Allowed memory size of xx bytes exhausted” message, caused by PHP running out of memory to run a script, such as running too many extensions/plugins/file uploads/traffic.
The Joomla community is extremely active and an invaluable source for troubleshooting issues, from security concerns to software bugs. Thanks to its dedicated members, many issues are quickly addressed by this resource for troubleshooting issues quickly and efficiently. Furthermore, extensive documentation for developers makes creating sites with Joomla easier than ever.
2. Incorrect installation
Joomla is a free and open source content management system that can be used to quickly build websites and powerful online applications. Written in PHP programming language and employing object-oriented design patterns and models, it boasts an active community of developers. Plus it includes built-in security measures which help reduce vulnerabilities as well as an extensive system for supporting site operators!
One of the most frequently occurring errors in Joomla is when it fails to install modules correctly. This can happen for various reasons; perhaps your file or folder permissions are incorrect, or maybe you don’t have write access for your /tmp directory in server root – both could prevent extensions (components, plugins or modules) from being installed properly.
Another possible reason could be that an extension may no longer work with your version of Joomla, making an audit of extensions essential to ensure any which are no longer in use or haven’t been utilized recently are removed from your list.
3. Incorrect configuration
Joomla is one of the world’s leading content management systems, yet like all software it can have its limitations. Misconfiguration is one of the main causes, leading to outages or security breaches and potentially creating errors on sites.
Joomla is susceptible to SQLi vulnerabilities due to inadequate input filtering. A recent flaw found in ARI Quiz version 3.7.4 allowed attackers to gain admin credentials by guessing password character by character on the login page, an exploit which has since been patched with version 3.9.7; however, Exploit-DB still lists many exploits targeting older versions of this component.
To avoid this from occurring, make sure your host is running PHP 7.1 or later and that your site is set up to use it by default. Furthermore, it is advisable to exclude error log files from backups because their growth can slow down backup operations significantly – you can do this by changing the value of public $error_reporting in config.php file.
4. Incorrect installation of third-party extensions
Joomla users frequently experience problems related to improper installation of third-party extensions, which may cause errors in configuration files or even data loss. Should this happen to you, it is imperative that it is corrected immediately in order to protect any valuable information.
Error 500 could also occur if your Joomla server settings do not correspond with those of your hosting provider, possibly necessitating an adjustment to PHP memory limit or disabling error reporting in Joomla configuration files.
Error 1299 occurs when a plugin or extension attempts to access functions that do not exist on the host system. In many instances, this issue can be remedied by installing a newer version of either plugin or extension.
If you experience this error, it may be due to security concerns. To keep your Joomla website secure and avoid hacking and other security risks, consider updating and installing Astra as soon as possible – both will help to safeguard against hacking attempts as well as potential issues that might otherwise arise.
5. Incorrect installation of plugins
One of the main issues with Joomla is when updating components or modules it does not always copy all of their files from their package, leading to upgrades not appearing in Components menu or even on website after upgrade. Solving such problems can often be tricky as it can be hard to identify what caused the issue in the first place.
Another issue arises when plugins or modules are removed from Joomla packages (or should be), Joomla does not uninstall their code; this can result in a mix of old and new code which causes PHP fatal errors.
Unfortunately, Joomla error reporting may not always function correctly and this can expose personal information about your website to hackers. Therefore, it is wise to disable error reporting on live websites unless debugging it, and when performing backups.
6. Incorrect installation of modules
Joomla users will, at some point, experience errors that can be very annoying if they occur on the front-end of their websites. Such issues may stem from improper coding or bugs in extensions; to address them, use a debugging tool on your server and identify where the issue lies.
Parse errors are a type of PHP error that occur when there’s an incorrect syntax error in your script, resulting in incorrectly displayed content and failed features, as well as website crashes.
PHP errors come in various forms, with the most frequently occurring ones including redeclaring functions/classes, division by zero errors and unmatched curly braces being the most frequently seen ones. You can quickly detect these issues by right-clicking on your browser front end and selecting “inspect”. When warnings arise from these warnings or error messages, referring back to either your log file or error messages for help locating their source – log files typically include call stack information which will provide a visual indicator as to where any issues lie within these two sources of trouble exist within.
7. Incorrect installation of themes
Joomla is a free and open-source content management system (CMS), designed for creating websites and powerful online applications. Built using PHP with object-oriented programming and software design patterns as its basis, data stored in MySQL databases. Joomla also boasts numerous features including support for multiple languages and multilingual URLs.
Joomla themes offer an effective way of changing the look and feel of a website without needing to modify its code, however installing one correctly may prove challenging. As soon as your theme has been uploaded successfully, verify its installation; if unsure, reach out to its developer and request assistance.
Security researchers recently identified a flaw in Joomla’s login page which allows attackers to guess administrator credentials character by character from its login form, creating what’s known as a Cross Site Request Forgery attack that could allow control over your site to be gained by exploiting this flaw. It impacts versions prior to 3.9.5 of Joomla; to mitigate it simply upgrade to latest software versions available.
8. Incorrect installation of components
Installing Joomla components may sometimes be interrupted due to time or file size restrictions or by insufficient permissions on the folder (tmp or media).
Solution: Check that all folders where components place their files have writable permissions – particularly your tmp folder and where extensions are installed. Performing regular inspections to detect potential permission issues could save time when installing new extensions.
Debug mode in your server settings may also prove helpful in diagnosing any potential issues on the frontend of your site, by displaying PHP errors directly in the frontend browser window. Simply choose Development as the option for debug mode; an error log will then appear, from which you can take screenshots to add to tickets/posts; often these errors provide clues as to where a problem lies.