CVE-2025-10018
📋 TL;DR
QuickCMS versions including 6.8 contain stored cross-site scripting (XSS) vulnerabilities in the language editor functionality. Attackers with admin privileges can inject malicious HTML and JavaScript that executes on every page, potentially compromising user sessions and website integrity. This affects all QuickCMS installations where admin accounts could be compromised or misused.
💻 Affected Systems
- QuickCMS
📦 What is this software?
Quick Cms by Opensolution
⚠️ Risk & Real-World Impact
Worst Case
Complete website takeover through session hijacking, credential theft from all users, defacement, and installation of persistent malware on visitors' systems.
Likely Case
Session hijacking of admin users, theft of sensitive data entered on the website, and website defacement affecting brand reputation.
If Mitigated
Limited impact if proper admin account security and input validation are in place, though the vulnerability still exists.
🎯 Exploit Status
Exploitation requires admin credentials; once obtained, injection is straightforward through language editor interface
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Monitor vendor channels for updates and apply immediately when released.
🔧 Temporary Workarounds
Restrict Admin Access
allLimit admin account access to trusted IP addresses only
Configure web server (Apache/Nginx) to restrict /admin/ paths to specific IPs
Disable Language Editor
allRemove or disable the vulnerable language editor functionality
Rename or remove language editor files/directories if possible
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to block inline JavaScript execution
- Enable web application firewall (WAF) rules specifically blocking XSS payloads in language editor parameters
🔍 How to Verify
Check if Vulnerable:
Check if QuickCMS version is 6.8 or earlier; attempt to inject basic XSS payload in language editor with admin privilegesCheck Version:
Check CMS configuration files or admin panel for version informationVerify Fix Applied:
Test if XSS payloads in language editor are properly sanitized or blocked after applying mitigations📡 Detection & Monitoring
Log Indicators:
- Unusual admin login patterns
- Multiple language file modifications in short time
- Requests containing script tags to language editor endpoints
Network Indicators:
- Unusual traffic patterns to language editor API endpoints
- External script loading from unexpected domains
SIEM Query:
source="web_logs" AND (uri_path="/admin/languages*" OR uri_path="/languages/edit*") AND (http_method="POST" OR http_method="PUT") AND (content CONTAINS "<script>" OR content CONTAINS "javascript:")