note 55112 added to ref.mail

From: Date: Tue, 26 Jul 2005 01:42:02 +0000
Subject: note 55112 added to ref.mail
Groups: php.notes 
Request: Send a blank email to php-notes+get-92438@lists.php.net to get a copy of this message
Hi, from the example below : $headers .= "From: \"".$fromname."\" <".$fromaddress.">\n"; return mail($toaddress, $subject, $message, $headers); This will allow a SMTP injection attack on your feedback form. Make sure you end your headers with \r\n\r\n or the missing \r\n will allow the attacker to inject additional headers. The main use for this common flaw is to use your contact form for spam. Remember: always triple-check user input that does anything meaningful. ---- Manual Page -- http://www.php.net/manual/en/ref.mail.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55112 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55112&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55112&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55112&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55112&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55112&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55112&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55112&report=yes Search -- http://master.php.net/manage/user-notes.php

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