CVE-2025-39436
📋 TL;DR
This vulnerability allows attackers to upload malicious files to WordPress sites using the I Draw plugin. Attackers can execute arbitrary code, potentially taking full control of affected websites. All WordPress installations with I Draw plugin versions up to 1.0 are vulnerable.
💻 Affected Systems
- WordPress I Draw plugin
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise leading to data theft, ransomware deployment, or website defacement
Likely Case
Webshell upload enabling persistent backdoor access and further exploitation
If Mitigated
File upload attempts blocked or quarantined by security controls
🎯 Exploit Status
Exploitation requires authenticated user access but is trivial once obtained
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/idraw/vulnerability/wordpress-i-draw-1-0-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 I Draw plugin
4. Click 'Update Now' if update available
5. If no update available, deactivate and remove plugin immediately
🔧 Temporary Workarounds
Restrict file upload extensions
allConfigure web server to block execution of uploaded files in upload directories
# For Apache: Add to .htaccess in uploads directory
<FilesMatch "\.(php|phtml|php3|php4|php5|php7|phps|php8|pl|py|jsp|asp|sh|cgi)">
Order Allow,Deny
Deny from all
</FilesMatch>
# For Nginx: Add to server block
location ~* ^/wp-content/uploads/.*\.(php|phtml|php3|php4|php5|php7|phps|php8|pl|py|jsp|asp|sh|cgi)$ {
deny all;
}
🧯 If You Can't Patch
- Disable or remove the I Draw plugin immediately
- 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 I Draw version 1.0 or earlierCheck Version:
# Check via WordPress CLI
wp plugin list --name=idraw --field=version
# Or check wp-content/plugins/idraw/readme.txt for versionVerify Fix Applied:
Verify I Draw plugin version is 1.0.1 or later, or confirm plugin is removed📡 Detection & Monitoring
Log Indicators:
- File uploads to unexpected locations
- POST requests to upload endpoints with suspicious file extensions
- Webshell access patterns in access logs
Network Indicators:
- Unusual file upload traffic to WordPress upload directories
- HTTP requests executing uploaded files
SIEM Query:
source="web_access_logs" AND (uri_path="/wp-content/plugins/idraw/*" OR uri_path="/wp-content/uploads/*") AND (method="POST" OR file_extension IN ("php", "phtml", "jsp", "asp"))