CVE-2024-45960
📋 TL;DR
Zenario CMS version 9.7.61188 allows authenticated admin users to upload PDF files containing malicious JavaScript code. When these PDFs are accessed through the website, they can execute cross-site scripting attacks against other users. This affects organizations using vulnerable Zenario installations with admin accounts.
💻 Affected Systems
- Zenario CMS
📦 What is this software?
Zenario by Tribalsystems
⚠️ Risk & Real-World Impact
Worst Case
Attackers with admin credentials could upload malicious PDFs that execute arbitrary JavaScript in victims' browsers, potentially stealing session cookies, performing actions as authenticated users, or redirecting to phishing sites.
Likely Case
Malicious admins or compromised admin accounts could upload PDFs that execute limited JavaScript payloads when accessed by other users, potentially stealing session data or performing unauthorized actions.
If Mitigated
With proper access controls and input validation, the impact is limited to authenticated admin users who would already have significant system access.
🎯 Exploit Status
Exploitation requires admin credentials. The Medium article demonstrates the vulnerability with technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
Check Zenario vendor website for security updates. Upgrade to latest version when available.
🔧 Temporary Workarounds
Restrict PDF uploads
allDisable PDF upload functionality for all users or implement strict file type validation
Implement Content Security Policy
allAdd CSP headers to prevent execution of inline JavaScript from uploaded files
🧯 If You Can't Patch
- Restrict admin account access to trusted personnel only and implement multi-factor authentication
- Monitor PDF uploads and access logs for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check Zenario version in admin panel or configuration files. If version is 9.7.61188, system is vulnerable.Check Version:
Check admin panel dashboard or examine Zenario configuration filesVerify Fix Applied:
Test PDF upload functionality with embedded JavaScript to verify proper sanitization📡 Detection & Monitoring
Log Indicators:
- Unusual PDF uploads by admin users
- Multiple PDF access requests from same IP
Network Indicators:
- JavaScript execution in PDF file responses
- Suspicious file upload patterns
SIEM Query:
source="zenario_logs" AND (event="file_upload" AND file_type="pdf")