A critical remote code execution vulnerability in PHPMailer, one of the most widely used PHP email sending libraries, could put millions of websites at risk of hacking.

Critical remote code execution vulnerabilities in PHPMailer and SwiftMailer, libraries used to send emails via PHP, were patched this week.

PHPMailer, one of the most used classes for sending emails from within PHP, has a serious vulnerability in versions less than 5.2.18 (current version). The security researcher [Dawid Golunski] just… ...

The vulnerable library is PHPMailer, a PHP script that allows developers to automate the task of sending emails using PHP code.