Remember: PHPUnit is a fantastic tool—for your local machine and CI pipeline. On a public web server, it is a ticking time bomb. Keep your indexes closed, your dependencies clean, and your eval() statements far away from stdin .
: PHPUnit is a unit testing framework for PHP. The src/util directory within PHPUnit's source code ( phpunit/phpunit/src/util ) contains utility classes that can be used across the framework.
Suppose you want to test a simple PHP function using eval-stdin.php . You can pipe the PHP code into the utility like this: Remember: PHPUnit is a fantastic tool—for your local
When using eval-stdin.php , keep in mind:
Here’s a concise draft for that filename/path (suitable as a file header, commit message, or brief description): : PHPUnit is a unit testing framework for PHP
Disclaimer: This information is for educational purposes only. Never attempt to test these vulnerabilities on systems you do not own or have explicit permission to test. If you're dealing with this, I can help you: for your specific server setup. Check if you are running a vulnerable version of PHPUnit.
How attackers use it: Automated bots scanning for /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php. Combine with "index of" to find open listings. You can pipe the PHP code into the
Index of /vendor/phpunit/phpunit/src/Util/PHP/
The severity of this vulnerability is reflected in its . The risk is so high that the eval-stdin.php vulnerability has been integrated into automated attack toolkits, such as the Python-based Androxgh0st malware , which uses it to build botnets and exfiltrate cloud credentials.