CVE-2025-31628
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the Sliced Invoices WordPress plugin that allows unauthorized users to access functionality intended only for authorized users. It affects all WordPress sites running Sliced Invoices versions up to 3.9.4. The vulnerability enables broken access control to plugin features.
💻 Affected Systems
- Sliced Invoices 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
Unauthorized users could access sensitive invoice data, modify financial records, or manipulate billing information, potentially leading to financial fraud or data breach.
Likely Case
Unauthorized users accessing invoice data they shouldn't have permission to view, potentially exposing customer information or financial details.
If Mitigated
With proper access controls and authentication checks, impact would be limited to attempted unauthorized access that gets blocked.
🎯 Exploit Status
Exploitation requires understanding of WordPress plugin structure but no special tools or advanced techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.9.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Sliced Invoices plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 3.9.5+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate Sliced Invoices plugin until patched version can be installed.
wp plugin deactivate sliced-invoices
Restrict Access via .htaccess
linuxAdd access restrictions to plugin directories via web server configuration.
# Add to .htaccess in wp-content/plugins/sliced-invoices/
Order Deny,Allow
Deny from all
🧯 If You Can't Patch
- Implement additional authentication layer or IP whitelisting for plugin access
- Monitor plugin access logs for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Sliced Invoices version number. If version is 3.9.4 or lower, system is vulnerable.Check Version:
wp plugin get sliced-invoices --field=versionVerify Fix Applied:
Verify plugin version is 3.9.5 or higher in WordPress admin panel, then test that unauthorized users cannot access plugin functionality.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to /wp-content/plugins/sliced-invoices/ paths
- 403 errors followed by successful 200 responses to plugin endpoints
Network Indicators:
- Unusual traffic patterns to plugin-specific endpoints from unauthorized IPs
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-content/plugins/sliced-invoices/" OR plugin="sliced-invoices") AND (response_code=200 OR response_code=403) AND user="unauthenticated"