CVE-2026-25548
📋 TL;DR
InvoicePlane 1.7.0 contains a critical Remote Code Execution vulnerability that allows authenticated administrators to execute arbitrary system commands on the server. Attackers can chain Local File Inclusion with Log Poisoning to achieve full server compromise. This affects all InvoicePlane 1.7.0 installations with administrator accounts.
💻 Affected Systems
- InvoicePlane
📦 What is this software?
Invoiceplane by Invoiceplane
⚠️ Risk & Real-World Impact
Worst Case
Complete server takeover with attacker gaining root/system-level access, data theft, ransomware deployment, and lateral movement to other systems.
Likely Case
Attacker gains shell access to the web server, exfiltrates sensitive invoice and client data, and installs backdoors for persistent access.
If Mitigated
Limited impact due to strong access controls, but still potential for data exposure if administrator credentials are compromised.
🎯 Exploit Status
Exploit requires administrator credentials and involves chaining LFI with log poisoning. Public exploit details are available in the security advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.7.1
Vendor Advisory: https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-g6rw-m9mf-33ch
Restart Required: No
Instructions:
1. Backup your InvoicePlane database and files. 2. Download InvoicePlane 1.7.1 from the official repository. 3. Replace all files except the 'uploads' folder and 'ipconfig.php' file. 4. Clear browser cache and verify functionality.
🔧 Temporary Workarounds
Restrict Administrator Access
allLimit administrator account access to trusted IP addresses only
# Configure web server (Apache example) to restrict admin access
<Location /admin>
Require ip 192.168.1.0/24
</Location>
Disable Public Invoice Template Feature
allRemove or restrict the vulnerable public_invoice_template functionality
# Add to application configuration or .htaccess
RewriteRule ^public_invoice_template - [F,L]
🧯 If You Can't Patch
- Implement strict network segmentation to isolate InvoicePlane server from critical systems
- Enable detailed logging and monitoring for suspicious administrator activities and file inclusion attempts
🔍 How to Verify
Check if Vulnerable:
Check the InvoicePlane version by examining the application footer or viewing the 'system/application/config/config.php' file for version information.Check Version:
grep -r "version" system/application/config/config.php 2>/dev/null || echo "Check application footer in web interface"Verify Fix Applied:
Verify the version is 1.7.1 by checking the application interface footer or the 'system/application/config/config.php' file. Test that the public_invoice_template parameter no longer accepts arbitrary file paths.📡 Detection & Monitoring
Log Indicators:
- Unusual file inclusion attempts in web server logs
- Administrator account logins from unexpected locations
- PHP code execution attempts in application logs
Network Indicators:
- HTTP requests containing 'public_invoice_template' parameter with unusual file paths
- Outbound connections from web server to suspicious external IPs
SIEM Query:
source="web_server.log" AND (uri="*public_invoice_template*" AND (path="*log*" OR path="*../*"))