Vendor Phpunit Phpunit Src Util Php Eval-stdin.php Exploit Jun 2026

— Never deploy development dependencies to production. Use Composer with the --no-dev flag during production builds:

(Note: Alternate paths like /phpunit/src/Util/PHP/eval-stdin.php may also exist depending on the project structure.)

Attackers scan the internet looking for exposed vendor directories.They use automated tools to send specific HTTP POST or GET requests to the eval-stdin.php path. A typical exploit payload looks like this: vendor phpunit phpunit src util php eval-stdin.php exploit

PHPUnit is the de facto standard testing framework for PHP applications. During installation via Composer —the primary package manager for PHP—dependencies are downloaded directly into a root folder named /vendor/ . The Root Cause File

If a web server serves the vendor directory, an attacker can send an HTTP POST request to this specific file. The body of the POST request becomes the payload for the eval() function. — Never deploy development dependencies to production

This code generates malicious input that, when provided to the eval-stdin.php script, executes the ls -l command. This example illustrates the potential for code injection and RCE.

: The attacker can alter or delete website content. This code generates malicious input that, when provided

curl -d "<?php system('id'); ?>" http://target-site.com/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php

Androxgh0st focuses on:

If successfully exploited, this vulnerability could allow an attacker to execute arbitrary PHP code on the system, potentially leading to code execution, data breaches, or other malicious activities.