Code Injection in PHPUnit
Util/PHP/eval-stdin.php in PHPUnit starting with 4.8.19 and before 4.8.28, as well as 5.x before 5.6.3, allows remote attackers to execute arbitrary PHP code via HTTP POST data beginning with a <?php substring, as demonstrated by an attack on a site with an exposed /vendor folder, i.e., external access to the /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php URI.