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Wordpress Plugin WP Super Edit 2.5.4 - Remote File Upload

CVE Category Price Severity
CVE-xxxx-xxxx CWE-200 $500 High
Author Risk Exploitation Type Date
Unknown High Remote 2021-09-09
CVSS
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021090059

Below is a copy:

Wordpress Plugin WP Super Edit 2.5.4 - Remote File Upload
### Note:

# 1. Technical Description:
This plugin allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Uploaded files represent a significant risk to applications. The first step in many attacks is to get some code to the system to be attacked. Then the attack only needs to find a way to get the code executed. Using a file upload helps the attacker accomplish the first step.The consequences of unrestricted file upload can vary, including complete system takeover, an overloaded file system or database, forwarding attacks to back-end systems, client-side attacks, or simple defacement. It depends on what the application does with the uploaded file and especially where it is stored. 

# 2. Technical Description:
WordPress Plugin "wp-super-edit" allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This vulnerability is caused by FCKeditor in this plugin. Uploaded files represent a significant risk to applications. The first step in many attacks is to get some code to the system to be attacked. Then the attack only needs to find a way to get the code executed. Using a file upload helps the attacker accomplish the first step. The consequences of unrestricted file upload can vary, including complete system takeover, an overloaded file system or database, forwarding attacks to back-end systems, client-side attacks, or simple defacement. It depends on what the application does with the uploaded file and especially where it is stored.

### POC:

* Exploit 1 : site.com/wp-content/plugins/wp-super-edit/superedit/tinymce_plugins/mse/fckeditor/editor/filemanager/browser/default/browser.html
* Exploit 2 : site.com/wp-content/plugins/wp-super-edit/superedit/tinymce_plugins/mse/fckeditor/editor/filemanager/browser/default/connectors/test.html
* Exploit 3 : site.com/wp-content/plugins/wp-super-edit/superedit/tinymce_plugins/mse/fckeditor/editor/filemanager/upload/test.html
* Exploit 4 : site.com/wp-content/plugins/wp-super-edit/superedit/tinymce_plugins/mse/fckeditor/editor/filemanager/browser/default/frmupload.html

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