This Joomla Plugin implements an UI Layer for the HTTP Security headers so everyone can set and configure them from the backend.

You want to support my work for the development of my extensions and my work for the Joomla! Project you can give something back and sponsor me.

There are two ways to support me right now:

• This extension is part of Github Sponsors by sponsoring me, you help me continue my oss work for the Joomla! Project, write bug fixes, improving features and maintain my extensions.
• You just want to send me an one-time donation? Great you can do this via PayPal.me/zero24.

Thanks for your support!

This Joomla Plugin helps you to set the following HTTP Security Headers.

• Strict-Transport-Security
• Content-Security-Policy
• Content-Security-Policy-Report-Only
• X-Frame-Options
• X-XSS-Protection
• X-Content-Type-Options
• Referrer-Policy
• Expect-CT
• Feature-Policy

This plugin also comes with some easy defaults for:

• X-Frame-Options
• X-XSS-Protection
• X-Content-Type-Options
• Referrer-Policy

Note: If you have configured some HTTP Security Headers directly on the server, then this Plugin might create double entries.

Check the output of your HTTP headers after configuring this HTTP Security Headers Plugin. In Google Chrome: Inspect > Network > the output under Headers). In this Plugin you can disable the settings that cause double entries. Also check the Console of your browser for possible errors.

• Download the latest version of the plugin: https://github.com/zero-24/plg_system_httpheader/releases/latest
• Install the plugin using Upload & Install
• Enable the plugin form the plugin manager

Now the inital setup is completed and you can start configure the headers.

Please note that by default the following headers und values are set:

X-Frame-Options: SAMEORIGIN

More Infos: https://scotthelme.co.uk/hardening-your-http-response-headers/#x-frame-options

X-XSS-Protection: 1; mode=block

More Infos: https://scotthelme.co.uk/hardening-your-http-response-headers/#x-xss-protection

X-Content-Type-Options: nosniff

More Infos: https://scotthelme.co.uk/hardening-your-http-response-headers/#x-content-type-options

Referrer-Policy: no-referrer-when-downgrade

More Infos: https://scotthelme.co.uk/a-new-security-header-referrer-policy/

You can allways choose to disable or change the value for one of those by changing the plugin configuration.

Using this you can set different values from the default ones and also force headers. The supported headers are:

• Strict-Transport-Security
• Content-Security-Policy
• Content-Security-Policy-Report-Only
• X-Frame-Options
• X-XSS-Protection
• X-Content-Type-Options
• Referrer-Policy
• Expect-CT
• Feature-Policy

Here you can also decide whether the header is applyed only to the frontend and or only the backed or both sites.

This option activates 'Strict Transport Security' and allows the configuration of the value of that header including Include subdomains, Maximum registration time (max-age) and Preload.

HSTS means that your domain can no longer be called without HTTPS. Once added to the preload list, this is not easy to undo. Domains can be removed, but it takes months for users to make a change with a browser update. This option is very important to prevent 'man-in-the-middle attacks', so it should be activated in any case, but only if you are sure that HTTPS is fully supported for the domain and all subdomains in the long run! The value for 'maximum registration time' must be set to 63072000 (2 years) for recording.

With this option the Content-Security-Policy rule can be set individually including an dedicated subform for the the different directives as well as setting the rules in Report-Only mode.

This plugin is translated into the following languages:

• de-DE by @zero-24
• en-GB by @zero-24 & @brianteeman
• fr-FR by @Sandra97 & @YGomiero
• it-IT by @jeckodevelopment
• nl-NL by @pe7er

You want to contribute a translation for an additional language? Feel free to create an Pull Request against the master branch.

Please note that my update server only supports the latest version running the latest version of Joomla and atleast PHP 7.0. Any other plugin version I may have added to the download section don't get updates using the update server.

You have found an Issue or have an question / suggestion regarding the plugin, or do you want to propose code changes? Open an issue in this repo or submit a pull request with the proposed changes against the master branch.

This plugin has been included in the Joomla Core (joomla/joomla-cms#18301) and will be part of the upcomming 4.0 Release. Please note that the core the plugin has been renamed to plg_system_httpheaders (extra s) and extended by the new com_csp component for to core distribution.

David Jardin - @snipersister - https://www.djumla.de/ & Yves Hoppe - @yvesh - https://compojoom.com/

For giving me the inspiration for the plugin and their feedback on the actual implementation. Thanks 👍

This plugin can also been found in the Joomla! Extensions Directory: HTTPHeader by zero24

• build/build.sh
• git commit -am 'prepare release HttpHeader 1.0.x'
• git tag -s '1.0.x' -m 'HttpHeader 1.0.x'
• git push origin --tags
• create the release on GitHub
• git push origin master