CVE-2024-50480

9.9 CRITICAL

📋 TL;DR

This vulnerability allows attackers to upload arbitrary files, including web shells, to WordPress servers running the vulnerable AZEXO Marketing Automation plugin. Attackers can achieve remote code execution and full server compromise. All WordPress sites using affected plugin versions are at risk.

💻 Affected Systems

Products:
  • Marketing Automation by AZEXO WordPress plugin
Versions: All versions up to and including 1.27.80
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin activated. No special configuration needed for exploitation.

⚠️ 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 with persistent backdoor installation, data theft, lateral movement to other systems, and ransomware deployment.

🟠

Likely Case

Web shell upload leading to website defacement, credential harvesting, and installation of cryptocurrency miners or malware.

🟢

If Mitigated

File upload attempts blocked or detected, with no successful exploitation due to proper file type validation and server hardening.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access to WordPress, but once obtained, file upload is straightforward. Public exploit details available on security research sites.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.27.81 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/marketing-automation-by-azexo/wordpress-marketing-automation-by-azexo-plugin-1-27-80-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 'Marketing Automation by AZEXO'. 4. Click 'Update Now' if available, or manually update to version 1.27.81+. 5. Verify update completes successfully.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily deactivate the vulnerable plugin until patched

wp plugin deactivate marketing-automation-by-azexo

Restrict File Uploads

linux

Block upload of executable file types via web server configuration

# In Apache .htaccess: <FilesMatch "\.(php|phtml|php3|php4|php5|php7|phps|php8|pl|py|jsp|asp|sh|cgi)">
  Order Allow,Deny
  Deny from all
</FilesMatch>
# In Nginx: location ~ \.(php|phtml|php3|php4|php5|php7|phps|php8|pl|py|jsp|asp|sh|cgi)$ {
  deny all;
}

🧯 If You Can't Patch

  • Remove the plugin entirely from production systems
  • Implement web application firewall (WAF) rules to block file uploads to vulnerable endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'Marketing Automation by AZEXO' version 1.27.80 or earlier

Check Version:

wp plugin get marketing-automation-by-azexo --field=version

Verify Fix Applied:

Confirm plugin version is 1.27.81 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to plugin directories
  • POST requests to upload endpoints with PHP/executable files
  • Web server errors related to file type validation

Network Indicators:

  • HTTP POST requests to /wp-content/plugins/marketing-automation-by-azexo/ upload endpoints
  • Unusual outbound connections from web server after file upload

SIEM Query:

source="web_server" AND (uri_path="*marketing-automation-by-azexo*" AND http_method="POST" AND (file_extension="php" OR file_extension="phtml" OR file_extension="jsp"))

🔗 References

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