CVE-2022-25485
📋 TL;DR
CVE-2022-25485 is a local file inclusion vulnerability in CuppaCMS v1.0 that allows attackers to read arbitrary files on the server via the url parameter in /alerts/alertLightbox.php. This affects all installations of CuppaCMS v1.0 that have the vulnerable file accessible. Attackers can potentially access sensitive configuration files, source code, or other system files.
💻 Affected Systems
- CuppaCMS
📦 What is this software?
Cuppacms by Cuppacms
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise through reading sensitive files like configuration files containing database credentials, followed by database access and potential remote code execution.
Likely Case
Information disclosure of sensitive files including configuration files, source code, and potentially system files, leading to further attack vectors.
If Mitigated
Limited information disclosure if file permissions are properly configured and sensitive files are stored outside web root.
🎯 Exploit Status
The vulnerability is simple to exploit with basic HTTP requests. Public proof-of-concept code is available in the GitHub issue tracker.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://github.com/CuppaCMS/CuppaCMS/issues/24
Restart Required: No
Instructions:
No official patch is available. The project appears to be abandoned. Recommended action is to upgrade to a different CMS or implement workarounds.
🔧 Temporary Workarounds
Remove vulnerable file
linuxDelete or rename the vulnerable alertLightbox.php file to prevent exploitation
rm /path/to/cuppacms/alerts/alertLightbox.php
mv /path/to/cuppacms/alerts/alertLightbox.php /path/to/cuppacms/alerts/alertLightbox.php.disabled
Web server access restriction
allConfigure web server to block access to /alerts/ directory
# Apache: Add to .htaccess
<Files "alertLightbox.php">
Order Allow,Deny
Deny from all
</Files>
# Nginx: Add to server block
location ~ /alerts/alertLightbox\.php$ {
deny all;
return 403;
}
🧯 If You Can't Patch
- Implement strict file permission controls to limit what files can be accessed via the web server
- Deploy a web application firewall (WAF) with rules to detect and block local file inclusion attempts
🔍 How to Verify
Check if Vulnerable:
Check if /alerts/alertLightbox.php exists in your CuppaCMS installation and test with a request like: http://yoursite.com/alerts/alertLightbox.php?url=../../../../etc/passwdCheck Version:
Check the CuppaCMS version in the admin panel or look for version information in the source codeVerify Fix Applied:
Verify that the alertLightbox.php file is no longer accessible or that requests to it with file inclusion payloads are blocked📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /alerts/alertLightbox.php with suspicious parameters containing path traversal sequences (../, ..\)
- Multiple failed attempts to access sensitive files through the vulnerable endpoint
Network Indicators:
- HTTP GET requests with url parameter containing path traversal patterns
- Unusual file access patterns from single IP addresses
SIEM Query:
source="web_access_logs" AND uri="/alerts/alertLightbox.php" AND (query="*url=*../*" OR query="*url=*..\\*")