CVE-2025-64027
📋 TL;DR
Snipe-IT v8.3.4 contains a reflected XSS vulnerability in the CSV import workflow where invalid file uploads return unsanitized HTML in progress messages. An authenticated attacker can inject malicious JavaScript that executes in admin browsers when viewing import pages. Only affects authenticated users with admin access to the CSV import functionality.
💻 Affected Systems
- Snipe-IT
📦 What is this software?
Snipe It by Snipeitapp
⚠️ Risk & Real-World Impact
Worst Case
Admin account compromise leading to full system takeover, data theft, or ransomware deployment through session hijacking or credential theft.
Likely Case
Limited privilege escalation within the application, session hijacking of admin users, or defacement of admin interface.
If Mitigated
No impact if proper input validation and output encoding are implemented, or if admin users don't access maliciously crafted import pages.
🎯 Exploit Status
Exploit requires authenticated admin access and ability to intercept/modify POST requests to /livewire/update endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check GitHub repository for security updates
2. Apply any available patches for Snipe-IT v8.3.4
3. Verify input validation is implemented for progress_message parameter
🔧 Temporary Workarounds
Input Validation Implementation
allAdd server-side validation and HTML encoding for progress_message parameter in CSV import workflow
Modify Snipe-IT source code to sanitize progress_message input using htmlspecialchars() or equivalent
Content Security Policy
allImplement strict CSP headers to prevent script execution from untrusted sources
Add Content-Security-Policy header with script-src 'self' directive
🧯 If You Can't Patch
- Restrict admin access to CSV import functionality to trusted users only
- Implement web application firewall rules to block malicious POST requests to /livewire/update
🔍 How to Verify
Check if Vulnerable:
Test CSV import with malicious payload in progress_message parameter and check if HTML/JS executes unsanitizedCheck Version:
Check Snipe-IT version in admin dashboard or via application configurationVerify Fix Applied:
Verify progress_message parameter is properly HTML-encoded in server responses📡 Detection & Monitoring
Log Indicators:
- POST requests to /livewire/update with suspicious progress_message content
- CSV import failures with unusual error messages
Network Indicators:
- Unusual POST payloads to /livewire/update endpoint
- Admin session tokens being sent to external domains
SIEM Query:
source="web_logs" AND uri_path="/livewire/update" AND (progress_message CONTAINS "<script>" OR progress_message CONTAINS "javascript:")