CVE-2025-5391
📋 TL;DR
The WooCommerce Purchase Orders plugin for WordPress has a vulnerability that allows authenticated users with Subscriber-level access or higher to delete arbitrary files on the server due to insufficient file path validation. This can lead to remote code execution by deleting critical files like wp-config.php. All WordPress sites using this plugin up to version 1.0.2 are affected.
💻 Affected Systems
- WooCommerce Purchase Orders 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 site compromise through remote code execution by deleting wp-config.php or other critical files, leading to data theft, defacement, or server takeover.
Likely Case
Site disruption or data loss through deletion of important files, potentially causing downtime or content loss.
If Mitigated
Limited impact if proper file permissions and access controls prevent exploitation, though vulnerability still exists.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once authenticated. The vulnerability is well-documented in public sources.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.3 or later
Vendor Advisory: https://plugins.trac.wordpress.org/browser/wc-purchase-orders/trunk/
Restart Required: No
Instructions:
1. Update the WooCommerce Purchase Orders plugin to version 1.0.3 or later via WordPress admin panel. 2. Verify the update completed successfully. 3. Test plugin functionality after update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate wc-purchase-orders
Restrict User Roles
allRemove Subscriber and other low-privilege roles from accessing the site
🧯 If You Can't Patch
- Immediately disable the WooCommerce Purchase Orders plugin
- Implement strict file permissions (e.g., 644 for files, 755 for directories) and monitor for unauthorized file deletion attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel for plugin version. If WooCommerce Purchase Orders plugin is installed and version is 1.0.2 or lower, it's vulnerable.Check Version:
wp plugin get wc-purchase-orders --field=versionVerify Fix Applied:
Verify plugin version is 1.0.3 or higher in WordPress admin panel and test plugin functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual file deletion events in WordPress or web server logs
- Multiple failed login attempts followed by file deletion requests
Network Indicators:
- HTTP POST requests to plugin endpoints with file deletion parameters
SIEM Query:
source="wordpress.log" AND "delete_file" AND NOT "wp-content/uploads"🔗 References
- https://plugins.trac.wordpress.org/browser/wc-purchase-orders/trunk/includes/class-bbpo-purchase-orders-files.php#L148
- https://plugins.trac.wordpress.org/browser/wc-purchase-orders/trunk/includes/class-bbpo-purchase-orders.php#L151
- https://www.wordfence.com/threat-intel/vulnerabilities/id/05a27a34-b324-4968-937e-2c0d24175d2a?source=cve
