CVE-2025-67924

9.8 CRITICAL

📋 TL;DR

This vulnerability allows attackers to upload arbitrary files, including web shells, to WordPress servers running the Corpkit theme. It affects all WordPress installations using Corpkit theme versions up to and including 2.0. Attackers can achieve remote code execution and full server compromise.

💻 Affected Systems

Products:
  • WordPress Corpkit Theme
Versions: n/a through <= 2.0
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with the Corpkit theme active. 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 with data exfiltration, ransomware deployment, and use as pivot point for lateral movement within the network.

🟠

Likely Case

Web shell upload leading to website defacement, data theft, and backdoor persistence on the server.

🟢

If Mitigated

File upload attempts blocked at WAF level with no successful exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Simple HTTP POST request with malicious file upload. Public exploit details available on security databases.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: >2.0

Vendor Advisory: https://patchstack.com/database/Wordpress/Theme/corpkit/vulnerability/wordpress-corpkit-theme-2-0-arbitrary-file-upload-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Update Corpkit theme to latest version via WordPress admin panel. 2. Verify theme version is >2.0. 3. Clear WordPress cache if applicable.

🔧 Temporary Workarounds

WAF File Upload Filtering

all

Configure web application firewall to block uploads of executable file types to WordPress upload directories.

# Example ModSecurity rule: SecRule FILES_TMPNAMES "@rx \.(php|phtml|php3|php4|php5|php7|phar|pl|py|jsp|asp|aspx|sh|bash|cmd|bat)$" "deny,status:403,id:1001"

File Upload Directory Restrictions

linux

Configure server to prevent execution of uploaded files in WordPress upload directories.

# Apache: <Directory /wp-content/uploads> php_flag engine off </Directory>
# Nginx: location ~* /wp-content/uploads/.*\.(php|phtml|php3|php4|php5|php7|phar)$ { deny all; }

🧯 If You Can't Patch

  • Disable or remove the Corpkit theme entirely and switch to a secure alternative.
  • Implement strict file upload validation at application level with whitelisted extensions only.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes for Corpkit theme version. If version is 2.0 or lower, system is vulnerable.

Check Version:

wp theme list --field=name,version --status=active | grep -i corpkit

Verify Fix Applied:

Confirm theme version is >2.0 in WordPress admin panel and test file upload functionality with malicious extensions.

📡 Detection & Monitoring

Log Indicators:

  • HTTP POST requests to /wp-content/themes/corpkit/ upload endpoints
  • File uploads with .php, .phtml, .phar extensions to upload directories
  • Unusual file creation in wp-content/uploads/

Network Indicators:

  • POST requests with file uploads to Corpkit theme endpoints
  • Subsequent HTTP requests to newly uploaded suspicious files

SIEM Query:

source="web_server" (method="POST" AND uri_path="/wp-content/themes/corpkit/*" AND file_extension IN ("php", "phtml", "phar", "jsp", "asp"))

🔗 References

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