CVE-2025-13249
📋 TL;DR
This vulnerability allows remote attackers to upload arbitrary files to Jiusi OA systems via the OfficeServer interface. Attackers can exploit this to potentially execute malicious code or compromise the system. Organizations using Jiusi OA up to version 20251102 are affected.
💻 Affected Systems
- Jiusi OA
⚠️ 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
Remote code execution leading to complete system compromise, data theft, and lateral movement within the network.
Likely Case
Unauthorized file upload allowing attackers to deploy web shells, deface websites, or exfiltrate sensitive data.
If Mitigated
Limited impact with proper file upload restrictions and web application firewalls in place.
🎯 Exploit Status
Exploit details are publicly available in GitHub repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Check vendor website for updates.
🔧 Temporary Workarounds
Restrict OfficeServer Interface Access
linuxBlock access to the vulnerable endpoint using network controls
iptables -A INPUT -p tcp --dport [OA_PORT] -m string --string "OfficeServer" --algo bm -j DROP
Implement WAF Rules
allConfigure web application firewall to block malicious uploads to the vulnerable endpoint
🧯 If You Can't Patch
- Isolate the Jiusi OA system from the internet and restrict internal access
- Implement strict file upload validation and monitoring for the OfficeServer interface
🔍 How to Verify
Check if Vulnerable:
Check if Jiusi OA version is 20251102 or earlier and test file upload to /OfficeServer endpointCheck Version:
Check Jiusi OA admin panel or configuration files for version informationVerify Fix Applied:
Test if file upload restrictions are properly enforced on the OfficeServer interface📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /OfficeServer endpoint
- Multiple failed upload attempts
- Large file uploads to OfficeServer
Network Indicators:
- HTTP POST requests to /OfficeServer with FileData parameter
- Unusual outbound connections from OA server
SIEM Query:
source="jiusi-oa-logs" AND uri="/OfficeServer" AND method="POST" AND FileData=*