CVE-2025-26927
📋 TL;DR
This critical vulnerability in the EPC AI Hub WordPress plugin allows attackers to upload arbitrary files, including web shells, to the web server. Any WordPress site running AI Hub version 1.3.3 or earlier is affected, potentially leading to complete server compromise.
💻 Affected Systems
- EPC AI Hub WordPress 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 takeover with remote code execution, data exfiltration, lateral movement, and persistent backdoor installation.
Likely Case
Web shell upload leading to website defacement, data theft, and further exploitation of the server environment.
If Mitigated
Limited impact if file uploads are restricted via web application firewall or server configuration, though vulnerability remains.
🎯 Exploit Status
Simple HTTP POST request with malicious file upload bypasses file type restrictions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.4 or later
Vendor Advisory: https://patchstack.com/database/wordpress/theme/aihub/vulnerability/wordpress-ai-hub-plugin-1-3-3-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 'AI Hub' plugin. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 1.3.4+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the AI Hub plugin until patched.
wp plugin deactivate aihub
Web Application Firewall Rule
linuxBlock file uploads to AI Hub endpoints.
ModSecurity rule: SecRule REQUEST_URI "@contains /wp-content/plugins/aihub/" "id:1001,phase:1,deny"
🧯 If You Can't Patch
- Remove upload directory write permissions: chmod -R 755 /wp-content/plugins/aihub/
- Implement strict file upload validation at server level using .htaccess or nginx rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for AI Hub version 1.3.3 or lower.Check Version:
wp plugin get aihub --field=versionVerify Fix Applied:
Confirm AI Hub plugin version is 1.3.4 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /wp-content/plugins/aihub/ upload endpoints with .php, .jsp, or other executable extensions
- Unusual file creations in plugin directories
Network Indicators:
- Unexpected outbound connections from web server following file uploads
- HTTP requests with unusual User-Agents to plugin paths
SIEM Query:
source="web_server" AND (uri_path="/wp-content/plugins/aihub/*" AND http_method="POST" AND content_type="multipart/form-data")