Concrete 5.6.2.1 Multiple XSS

While I was playing around with Concrete 5.6.2.1 CMS, I wanted to know how this application shows us a hyperlink to the “Back” button. I found something interesting in the “download_file.php” file.


\concrete\single_pages\download_file.php

line 27

<form action="<?php echo  View::url('/download_file', 'submit_password', $fID) ?>" method="post">
		<?php  if(isset($force)) { ?>
			<input type="hidden" value="<?php echo  $force ?>" name="force" />
		<?php  } ?>
		<input type="hidden" value="<?php echo  $returnURL ?>" name="returnURL" />
		<input type="hidden" value="<?php echo  $rcID ?>" name="rcID"/>
		<label for="password"><?php echo t('Password')?>: <input type="password" name="password" /></label>
		<br /><br />
		<button type="submit"><?php echo t('Download')?></button>
	</form>

Let’s have a look at the “$returnURL” variable. (more…)

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