CVE-2026-3719
📋 TL;DR
This CVE describes a path traversal vulnerability in Tsinghua Unigroup Electronic Archives System version 3.2.210802(62532). Attackers can remotely exploit the /System/Cms/downLoad endpoint to read arbitrary files on the server by manipulating the 'path' parameter. Organizations using this specific version of the electronic archives system are affected.
💻 Affected Systems
- Tsinghua Unigroup Electronic Archives System
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive system files, configuration files, or user data, potentially leading to full system compromise if credentials or other critical information is exposed.
Likely Case
Unauthorized file disclosure including configuration files, user data, or other sensitive information stored on the server.
If Mitigated
Limited to reading files accessible to the web server process, with no ability to write or execute files.
🎯 Exploit Status
Public exploit code is available on GitHub, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Vendor was contacted but did not respond. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block path traversal patterns in the 'path' parameter
Input Validation
allAdd server-side validation to sanitize the 'path' parameter and prevent directory traversal sequences
🧯 If You Can't Patch
- Restrict network access to the system using firewall rules to only allow trusted IP addresses
- Implement network segmentation to isolate the vulnerable system from sensitive data and other critical systems
🔍 How to Verify
Check if Vulnerable:
Test by attempting to access /System/Cms/downLoad?path=../../../../etc/passwd (Linux) or similar traversal patternsCheck Version:
Check system version through admin interface or configuration filesVerify Fix Applied:
Verify that path traversal attempts return error messages or are blocked, and that only intended files can be accessed📡 Detection & Monitoring
Log Indicators:
- Multiple requests to /System/Cms/downLoad with ../ patterns in parameters
- Unusual file access patterns from web server process
Network Indicators:
- HTTP requests containing path traversal sequences (../, ..\, etc.) in URL parameters
SIEM Query:
source="web_server" AND url="/System/Cms/downLoad" AND (parameter="path" AND value="*../*")