CVE-2025-53213

9.9 CRITICAL

📋 TL;DR

This vulnerability allows attackers to upload malicious files to websites using the ReachShip WooCommerce Multi-Carrier & Conditional Shipping plugin. Attackers can upload dangerous file types like PHP scripts, potentially leading to complete server compromise. All WordPress sites using affected versions of this plugin are vulnerable.

💻 Affected Systems

Products:
  • ELEXtensions ReachShip WooCommerce Multi-Carrier & Conditional Shipping
Versions: All versions up to and including 4.3.1
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with the vulnerable plugin enabled. No special configuration required.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete server takeover through remote code execution, data theft, defacement, and backdoor installation.

🟠

Likely Case

Website defacement, malware distribution, credential theft, and unauthorized administrative access.

🟢

If Mitigated

Limited impact if file uploads are restricted to authenticated users only and proper file type validation exists.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Simple file upload exploitation with publicly available proof-of-concept. Attackers can upload malicious files without authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.3.2 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/elex-reachship-multi-carrier-conditional-shipping/vulnerability/wordpress-reachship-woocommerce-multi-carrier-conditional-shipping-4-3-1-arbitrary-file-upload-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'ReachShip WooCommerce Multi-Carrier & Conditional Shipping'. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 4.3.2+ from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate elex-reachship-multi-carrier-conditional-shipping

Restrict File Uploads via .htaccess

linux

Block execution of uploaded files in upload directories

<FilesMatch "\.(php|php3|php4|php5|phtml|pl|py|jsp|asp|sh|cgi)$">
  Order Allow,Deny
  Deny from all
</FilesMatch>

🧯 If You Can't Patch

  • Disable the plugin immediately and use alternative shipping solutions
  • Implement web application firewall rules to block file uploads to vulnerable endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'ReachShip WooCommerce Multi-Carrier & Conditional Shipping' version 4.3.1 or earlier

Check Version:

wp plugin get elex-reachship-multi-carrier-conditional-shipping --field=version

Verify Fix Applied:

Verify plugin version is 4.3.2 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to wp-content/uploads/elex-reachship/ directory
  • POST requests to /wp-admin/admin-ajax.php with file upload parameters
  • Execution of unexpected PHP files in upload directories

Network Indicators:

  • HTTP POST requests with file uploads to plugin-specific endpoints
  • Unusual outbound connections from web server after file upload

SIEM Query:

source="web_server" AND (uri_path="/wp-admin/admin-ajax.php" AND method="POST" AND (form_data CONTAINS "action=elex_reachship" OR form_data CONTAINS "upload"))

🔗 References

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