CVE-2025-62857
📋 TL;DR
A cross-site scripting (XSS) vulnerability in QuMagie allows remote attackers to inject malicious scripts that execute in users' browsers. This affects all QuMagie users running vulnerable versions, potentially compromising their sessions and data.
💻 Affected Systems
- QNAP QuMagie
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, or redirect users to malicious sites, leading to complete account compromise.
Likely Case
Attackers inject malicious scripts to steal session tokens or sensitive data from users who interact with the vulnerable interface.
If Mitigated
With proper input validation and output encoding, the vulnerability would be prevented, but users on vulnerable versions remain at risk.
🎯 Exploit Status
XSS vulnerabilities typically have low exploitation complexity; unauthenticated access suggests attackers can exploit without credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: QuMagie 2.8.1 and later
Vendor Advisory: https://www.qnap.com/en/security-advisory/qsa-25-49
Restart Required: Yes
Instructions:
1. Log into QNAP NAS as admin. 2. Open App Center. 3. Find QuMagie and update to version 2.8.1 or later. 4. Restart QuMagie service or the NAS if prompted.
🔧 Temporary Workarounds
Disable QuMagie if unused
allTemporarily disable the QuMagie application to prevent exploitation until patching.
Open App Center, select QuMagie, click 'Disable'
Restrict network access
allLimit access to QuMagie to trusted internal networks only using firewall rules.
Configure NAS firewall to block external access to QuMagie ports (default 8080/HTTPS)
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with XSS protection rules to block malicious payloads.
- Educate users to avoid clicking suspicious links and enable browser security features like Content Security Policy (CSP) if supported.
🔍 How to Verify
Check if Vulnerable:
Check QuMagie version in App Center; if below 2.8.1, it is vulnerable.Check Version:
Log into NAS CLI and run: cat /etc/config/uLinux.conf | grep -i qumagieVerify Fix Applied:
Confirm QuMagie version is 2.8.1 or higher in App Center after update.📡 Detection & Monitoring
Log Indicators:
- Unusual script tags or JavaScript payloads in web server logs for QuMagie endpoints.
Network Indicators:
- HTTP requests with suspicious parameters containing script tags or encoded payloads to QuMagie.
SIEM Query:
source="web_logs" AND url="*qumagie*" AND (payload="*<script>*" OR payload="*javascript:*")