<?php system('id'); ?>
: An attacker can send a crafted HTTP POST request containing PHP code starting with vendor phpunit phpunit src util php eval-stdin.php cve
The command you mentioned resembles:
The file src/Util/PHP/eval-stdin.php was intended for internal testing purposes. It contains the following code (simplified): The eval-stdin
Run composer install --no-dev to ensure development tools like PHPUnit are never deployed to production. : By prepending
Marta checked the commit logs. The eval-stdin.php file had been added with a message: “quick helper for debugging.” The author’s name was unfamiliar; a contractor perhaps, long since gone. The patch had slipped through because the CI pipeline was lax—no static analysis gates, no policy to forbid evals in deployed artifacts. She copied the file into a sandbox and drew a line through it with her editor.
: By prepending ?> (the PHP closing tag), the code instructs the compiler to immediately exit inline template mode and treat any following text as raw, executable PHP code blocks beginning with