EvalStdin.php is a small but useful utility in PHPUnit’s tooling to run PHP code delivered over stdin in an isolated CLI process. Its design focuses on simplicity, predictable error reporting, and easy integration into test orchestration. However, because it executes arbitrary code, it must be used cautiously within trusted contexts and hardened at the OS/configuration level when necessary.
// The script reads from standard input $code = file_get_contents('php://input'); index of vendor phpunit phpunit src util php evalstdinphp
vendor/phpunit/phpunit/src/Util/PHP/EvalStdin.php Vulnerability Type: Remote Code Execution (RCE) CVE Identifier: CVE-2017-9841 Severity: Critical (CVSS 9.8) Affected Versions: PHPUnit < 5.6.3 EvalStdin
Below is a detailed technical white paper analyzing this vulnerability, its implications, and its role in the modern threat landscape. predictable error reporting