CloudLinux - HardenedPHP Feature

HardenedPHP maintains and patches old PHP versions, making them secure again




Several highly popular versions of PHP, used in nearly 85% of all PHP sites, are unsupported by the community. HardenedPHP secures old and unsupported versions of PHP - 4.4.9, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 7.0, 7.1.

HardenedPHP secures old and unsupported versions of PHP. In those old versions, including the widely used 5.2, 5.3, 5.4 and (as of June 2016) 5.5, vulnerabilities, even if discovered, are not patched by the community. HardenedPHP takes care of all this.


Ensure application and server security by patching all PHP versions

PHP represents more than 80% of all server-side scripts. Because of this wide application usage, PHP is constantly exploited by hackers, making sites vulnerable.

HardenedPHP keeps your customers and servers safe by patching all PHP versions against known vulnerabilities - even those versions unsupported by the community.

Over 100 vulnerabilities, many of which were critical, have been discovered for the unsupported versions of PHP. All have been patched by CloudLinux.

Increase customer retention by not forcing upgrades to a newer PHP version

About 85% of all PHP sites use highly popular PHP versions 5.2, 5.3, 5.4, and 5.5. Yet, all four of these versions are unsupported by the community.

Developers write their scripts to accommodate a particular PHP version, but when a version becomes obsolete, companies are not always able to update and change programs to accommodate newer versions.

HardenedPHP patches old PHP versions so that you do not have to force your customers to re-write scripts written for an older PHP version or worse, risk breaking their sites.

Give your customers security and flexibility

PHP is universal and has the widest use of all server-side scripts. According to, as of August 2016, the percentage of websites using PHP subversions of PHP 5 was as follows:

  • 20.1% PHP 5.5 — not supported by the community as of June 2016
  • 27.4%% PHP 5.4 — not supported by the community as of September 2015
  • 28% PHP 5.3 — no development, no bug fixes, no security support as of August 2014
  • 10.4% PHP 5.2 — no development, no bug fixes, no security support as of January 2011
  • 1% older versions, including 5.1 (and 4.4)
  • Remaining 15% represent version 5.6 supported by the community

With HardenedPHP in CloudLinux OS, not only can you secure old PHP versions, but you can also offer various packaged PHP versions on a single shared web server with PHP Selector to ensure maximum security and flexibility.

HardenedPHP comes with CloudLinux OS, but it can also be purchased as a stand-alone offering if you have more than 100 CentOS servers. With pricing and other questions, please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it..


Learn more about PHP Selector



Highly Compatible

Enjoy the increased stability of CloudLinux OS without sacrificing compatibility. It works with all
major control panels and is compatible with most software commonly used with CentOS and RHEL.

Easy to Get Started

A single script converts existing servers without any customer configs or data changes.
A CentOS-like interface makes you feel instantly at home. It is highly compatible and works
with all software commonly used with CentOS and RHEL.

If you have any questions, please email sales at [email protected]