CVE-2025-8116
📋 TL;DR
PAD CMS is vulnerable to reflected cross-site scripting (XSS) in printing and PDF save functionality. Attackers can craft malicious URLs that execute arbitrary JavaScript in victims' browsers when opened. This affects all PAD CMS installations using www, bip, or www+bip templates.
💻 Affected Systems
- PAD CMS
📦 What is this software?
Pad Cms by Widzialni
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deliver malware through the victim's browser.
Likely Case
Attackers would use phishing to trick users into clicking malicious links, leading to session hijacking or credential theft from authenticated users.
If Mitigated
With proper input validation and output encoding, the malicious payload would be neutralized before reaching the browser.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) but no authentication. Attack complexity is low as it's a standard reflected XSS.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: N/A
Restart Required: No
Instructions:
No official patch available as product is End-Of-Life. Vendor will not publish fixes.
🔧 Temporary Workarounds
Implement WAF with XSS protection
allDeploy a web application firewall that can detect and block XSS payloads in URLs
Disable affected functionality
allRemove or disable printing and PDF save features if not essential
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Deploy network segmentation to isolate PAD CMS from critical systems
🔍 How to Verify
Check if Vulnerable:
Test by injecting basic XSS payloads into printing/PDF save parameters and checking if they execute in browserCheck Version:
Check PAD CMS version in admin panel or configuration filesVerify Fix Applied:
Verify that injected scripts are properly encoded or blocked when testing the same payloads📡 Detection & Monitoring
Log Indicators:
- Unusual URL parameters containing script tags or JavaScript in printing/PDF requests
- Multiple failed attempts with suspicious parameter values
Network Indicators:
- HTTP requests with suspicious characters (<, >, script, javascript) in URL parameters
- Outbound connections to unexpected domains following PDF/print requests
SIEM Query:
source="web_logs" AND (url="*print*" OR url="*pdf*") AND (url="*<script>*" OR url="*javascript:*" OR url="*onerror=*" OR url="*onload=*")