Critical PHPMailer Flaw leaves Millions of Websites Vulnerable

Dec 25 2016: A critical vulnerability has been discovered in PHPMailer, which is one of the most popular open source PHP libraries to send emails used by more than 9 Million users worldwide.
Millions of PHP websites and popular open source web applications, including WordPress, Drupal, 1CRM, SugarCRM, Yii, and Joomla comes with PHPMailer library for sending emails using a variety of methods, including SMTP to their users.

Discovered by Polish security researcher Dawid Golunski of Legal Hackers, the critical vulnerability (CVE-2016-10033) allows an attacker to remotely execute arbitrary code in the context of the web server and compromise the target web application.


"To exploit the vulnerability an attacker could target common website components such as contact/feedback forms, registration forms, password email resets and others that send out emails with the help of a vulnerable version of the PHPMailer class," Golunski writes in the advisory published today.
Golunski responsibly reported the vulnerability to the developers, who have patched the vulnerability in their new release, PHPMailer 5.2.18.

All versions of PHPMailer before the critical release of PHPMailer 5.2.18 are affected, so web administrators and developers are strongly recommended to update to the patched release.

Since The Hacker News is making the first public disclosure of the vulnerability in the news following Golunski advisory and millions of websites remain unpatched.

For more details please visit the following links

https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html

https://twitter.com/search?f=tweets&vertical=default&q=%23PhpMailer

 

Was this answer helpful?

 Print this Article

Also Read

How to Prevent Hacking

There are many common methods for attack that hackers may use to compromise your services. By...

The Primary Purpose of Secure SSL Certificates

The internet is a marketplace featuring 1000 of products and services from all around the world....

Using Hotlink Protection

Hotlink Protection prevents other web sites from directly linking to certain files (typically...

How to Use an SSL certificate for WordPress Multisite

If you want to enable HTTPS everywhere, then there are simple steps that can make your multisite...

Ways to Secure Your WordPress Site You’ve Probably Overlooked

WordPress security is often referred to as “hardening.” Makes sense. After all, the process is...


Our official partners