Create a .htaccess file inside your vendor/ folder with the following content: Deny from all Use code with caution.
When a developer accidentally uploads the vendor/ directory to a live website and leaves directory browsing enabled, an attacker can send an HTTP POST request directly to the eval-stdin.php file. The body of the POST request contains malicious PHP code, which the server promptly executes. The Impact of Remote Code Execution (RCE)
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: Developers often run composer install instead of composer install --no-dev when pushing code to live servers. This inadvertently uploads PHPUnit to the production environment. index of vendor phpunit phpunit src util php eval-stdin.php
file_get_contents('php://input') reads raw, unvalidated data directly from the body of an incoming HTTP POST request.
rm vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php
autoindex off;
The PHPUnit eval-stdin.php Vulnerability: A Critical Security Overview
Unauthorized testing is illegal.
Modern PHP development relies heavily on dependency managers like Composer. When developers install libraries such as PHPUnit, a vendor directory is created containing the framework's source code. A common architectural mistake is the exposure of this vendor directory to the public internet. Create a
This combination makes eval-stdin.php a prime target for automated scanners and attackers looking for easy remote code execution (RCE).
Understanding "index of vendor phpunit phpunit src util php eval-stdin.php": A Critical Security Risk
No, the file was completely removed in later versions. However, if you manually copied an old eval-stdin.php into a new project, you could still be vulnerable regardless of the PHPUnit version declared in composer.json . The Impact of Remote Code Execution (RCE) A
One notable case involved a misconfigured Laravel application (Laravel uses PHPUnit for testing). The developer committed the entire vendor/ folder to the public web root. Within hours of deployment, the server was used to send spam emails and host phishing pages.