curl -X POST "http://yourdomain.com/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php" \ -d "<?php echo 'safe_test'; ?>" \ -H "Content-Type: application/x-www-form-urlencoded"
Check the following:
Log entries from compromised servers show that attackers actively probe for this file. For example, a real Apache access log snippet reveals: index of vendor phpunit phpunit src util php evalstdinphp
/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php curl -X POST "http://yourdomain
The most reliable fix is to ensure the vendor/ directory is never served by your web server. Common approaches: ?php echo 'safe_test'
When using Composer, always run:
Even more concerning, CVE‑2017‑9841 has been incorporated into , which explicitly exploits this endpoint to gain initial access to web servers. Androxgh0st sends malicious HTTP POST requests to eval-stdin.php to execute remote code and then uses that foothold to propagate further.