Drupal security vulnerabilities & threats
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From a high level, you’ll find Drupal security issues are much like ones you’ll find for any other CMS, but there are a few more specific aspects. Drupal is awesome because it empowers you to do so much with your website. Don’t let that convenience let you become complacent with these important vulnerabilities and threats.
Please note, the directions and screenshots in this guide apply to the latest version (Drupal 8 at the time of its publication).
Out-of-date themes & modules
When developers push out updates for themes and modules, they often include security patches for known Drupal security vulnerabilities. Delaying these updates can invite attacks from bad actors. Keeping your themes and extensions up to date helps avoid Drupal website threats.
Before starting any update to your Drupal website, make sure you have reliable backups (more on that later). This is especially important if you’re installing a theme or module for the first time.
You can check for available updates from Drupal admin. Click Reports, and then click Available updates. From here, you can either run updates via Drupal admin (if you got them from Drupal) or FTP (if you got them manually).
Get started by enabling maintenance mode.
To enable maintenance mode for your Drupal website:
- Log in to Drupal admin.
- From Manage, go to Configuration, and then from Development, select Maintenance mode.
- Tick Put site into maintenance mode.
- In Message to display when in maintenance mode, enter a message for visitors during your updates.
- Click Save configuration.
- Verify your site is in maintenance mode with another browser or incognito tab.
Now that your Drupal site is in maintenance mode, find and run any necessary updates.
To update Drupal themes & modules via admin:
- Log in to Drupal admin.
- From Manage, go to Configuration, and then from Reports, go to Available updates, and then select Update.
- Select the themes or modules you want to update, and then click Download these updates.
- Click Continue.
- Click Run database updates.
- Click Continue.
A word about failed updates via admin
If there is a misconfiguration in your server, a module will display requesting FTP credentials to complete the update. Make sure you’re using a secure connection before entering your FTP username and password, and then clicking Continue.
After your updates complete, disable maintenance mode.
To update Drupal themes & modules via FTP:
![Drupal Select2 Drupal Select2](https://www.drupalcenter.de/files/Autocomplete Helper-View.png)
- Use an FTP client to upload the updates to your Drupal codebase.
- In your web browser, enter your website URL followed by /update.php.
- Select the themes or modules you want to update, and then click Download these updates.
- Click Continue.
- Click Run database updates.
- Click Continue.
Drupal Select2 Not Working
After your updates complete, disable maintenance mode.
To disable maintenance mode for your Drupal website:
Drupal Select Options
- Log in to Drupal admin.
- From Manage, go to Configuration, and then from Development, select Maintenance mode.
- Untick Put site into maintenance mode.
- In Message to display when in maintenance mode, delete the message for visitors during your updates.
- Click Save configuration.
- Verify your site is out of maintenance mode with another browser or incognito tab.
Audit Drupal modules
Drupal modules make it easy to expand the functionality of your website, and you’ll likely try out several of these as you perfect your Drupal website. However, it’s important to be mindful that each module can present its own vulnerabilities which you should be aware of.
Periodically perform an audit of all the modules you downloaded to make sure they’re still necessary and the best available solution for your desired function. Find each module in the Drupal module repository, and then evaluate:
Drupal Views Select2
- Maintainers — Ideally there should be several of these individuals who commit to maintaining a module with updates and bug fixes.
- All issues — Does your module seem to have issues on a regular basis? If there’s a module with fewer issues, it might be a better choice.
- Bug report — Check the frequency of reported bugs, as well as the time between reporting and resolution.
- Documentation — If you need help with a module, quality documentation makes life a lot easier.
- Development — Is your module actively developed? If not, look for another similar module that is.