The SensioLabs Security Checker is a command line tool that checks if your application uses dependencies with known security vulnerabilities. It uses the Security Check Web service and the Security Advisories Database.

TIP: As an alternative, you can use the Symfony CLI tool that has the following advantages: it does not depend on PHP, all checks are done locally (no calls to the security.symfony.com API):

$ symfony security:check

Download the security-checker.phar file:

$ php security-checker.phar security:check /path/to/composer.lock

Use the code from the repository directly:

$ composer install
$ php security-checker security:check /path/to/composer.lock

The checker uses the Symfony Console component; so, you can easily integrate the checker into your own project:

• by using the SecurityCheckerCommand class into your Symfony Console application;

• by using the SecurityChecker class directly into your own code:

   use SensioLabs\Security\SecurityChecker;
  
   $checker = new SecurityChecker();
   $result = $checker->check('/path/to/composer.lock', 'json');
   $alerts = json_decode((string) $result, true);