docker-vulnerable-dvwa/dvwa/vulnerabilities/view_source.php

<?php

define( 'DVWA_WEB_PAGE_TO_ROOT', '../' );
require_once DVWA_WEB_PAGE_TO_ROOT . 'dvwa/includes/dvwaPage.inc.php';

dvwaPageStartup( array( 'authenticated', 'phpids' ) );

$page = dvwaPageNewGrab();
$page[ 'title' ] .= 'Source' . $page[ 'title_separator' ].$page[ 'title' ];

$id       = $_GET[ 'id' ];
$security = $_GET[ 'security' ];


switch ($id) {
	case "fi" :
		$vuln = 'File Inclusion';
		break;
	case "brute" :
		$vuln = 'Brute Force';
		break;
	case "csrf" :
		$vuln = 'CSRF';
		break;
	case "exec" :
		$vuln = 'Command Injection';
		break;
	case "sqli" :
		$vuln = 'SQL Injection';
		break;
	case "sqli_blind" :
		$vuln = 'SQL Injection (Blind)';
		break;
	case "upload" :
		$vuln = 'File Upload';
		break;
	case "xss_r" :
		$vuln = 'Reflected XSS';
		break;
	case "xss_s" :
		$vuln = 'Stored XSS';
		break;
	case "weak_id" :
		$vuln = 'Weak Session IDs';
		break;
	case "javascript" :
		$vuln = 'JavaScript';
		break;
	default:
		$vuln = "Unknown Vulnerability";
}

$source = @file_get_contents( DVWA_WEB_PAGE_TO_ROOT . "vulnerabilities/{$id}/source/{$security}.php" );
$source = str_replace( array( '$html .=' ), array( 'echo' ), $source );

$js_html = "";
if (file_exists (DVWA_WEB_PAGE_TO_ROOT . "vulnerabilities/{$id}/source/{$security}.js")) {
	$js_source = @file_get_contents( DVWA_WEB_PAGE_TO_ROOT . "vulnerabilities/{$id}/source/{$security}.js" );
	$js_html = "
	<h2>vulnerabilities/{$id}/source/{$security}.js</h2>
	<div id=\"code\">
		<table width='100%' bgcolor='white' style=\"border:2px #C0C0C0 solid\">
			<tr>
				<td><div id=\"code\">" . highlight_string( $js_source, true ) . "</div></td>
			</tr>
		</table>
	</div>
	";
}

$page[ 'body' ] .= "
<div class=\"body_padded\">
	<h1>{$vuln} Source</h1>

	<h2>vulnerabilities/{$id}/source/{$security}.php</h2>
	<div id=\"code\">
		<table width='100%' bgcolor='white' style=\"border:2px #C0C0C0 solid\">
			<tr>
				<td><div id=\"code\">" . highlight_string( $source, true ) . "</div></td>
			</tr>
		</table>
	</div>
	{$js_html}
	<br /> <br />

	<form>
		<input type=\"button\" value=\"Compare All Levels\" onclick=\"window.location.href='view_source_all.php?id=$id'\">
	</form>
</div>\n";

dvwaSourceHtmlEcho( $page );

?>