, which allows it to execute any PHP code sent in an HTTP POST request. Affected Versions: PHPUnit versions before versions before National Institute of Standards and Technology (.gov) Exploitation Mechanism
Understanding "Index of /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php" Hot: A Security Risk
: If STDIN is empty, eval('?>') does nothing — not a problem.
You can verify your exposure by checking your server logs or attempting to access the file safely. , which allows it to execute any PHP
If you have a composer.json file, look for:
If you have ever checked your server’s access logs and noticed repeated requests to /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php
: PHPUnit is a popular testing framework for the PHP programming language, usually installed via Composer. If you have a composer
This protects not only eval-stdin.php but also countless other test files, .git folders, and configuration examples that may be present.
use PHPUnit\Framework\TestCase; use PHPUnit\Util\evalStdin;
The problem arises entirely from :
Search engines (like Google, Shodan, or Censys) frequently index exposed directory structures. These indices sometimes have a "hot" or "trending" section for recently crawled, vulnerable files.
The presence of index of /vendor/phpunit/phpunit/src/Util/PHP/ is a major security red flag. The eval-stdin.php file represents an easy entry point for remote code execution. Immediate action to block access to the vendor directory is recommended for any production PHP application.