CVE-2026-2954
📋 TL;DR
This vulnerability allows remote attackers to perform injection attacks via manipulated driverClassName/url parameters in Dromara UJCMS's importChanel function. Attackers can potentially execute arbitrary code or access sensitive data. Organizations using Dromara UJCMS 10.0.2 are affected.
💻 Affected Systems
- Dromara UJCMS
📦 What is this software?
Ujcms by Ujcms
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data exfiltration, or ransomware deployment.
Likely Case
Data injection leading to unauthorized data access, manipulation, or denial of service.
If Mitigated
Limited impact with proper input validation and network segmentation in place.
🎯 Exploit Status
Exploit details are publicly available and the vulnerability is remotely exploitable without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available - vendor did not respond to disclosure
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation for driverClassName and url parameters in the importChanel function
Modify /api/backend/ext/import-data/import-channel endpoint to validate and sanitize all input parameters
Network Access Restriction
linuxRestrict access to the vulnerable endpoint using firewall rules or network segmentation
iptables -A INPUT -p tcp --dport [PORT] -s [TRUSTED_IPS] -j ACCEPT
iptables -A INPUT -p tcp --dport [PORT] -j DROP
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block injection patterns
- Disable or restrict access to the /api/backend/ext/import-data/import-channel endpoint
🔍 How to Verify
Check if Vulnerable:
Check if Dromara UJCMS version is 10.0.2 and the /api/backend/ext/import-data/import-channel endpoint is accessibleCheck Version:
Check application configuration files or admin panel for version informationVerify Fix Applied:
Test the importChanel function with malicious input to ensure proper validation and sanitization📡 Detection & Monitoring
Log Indicators:
- Unusual requests to /api/backend/ext/import-data/import-channel
- Suspicious parameter values in driverClassName or url fields
- Error logs showing injection attempts
Network Indicators:
- Unusual traffic patterns to the vulnerable endpoint
- Requests with encoded or obfuscated payloads
SIEM Query:
source="web_server" AND (uri="/api/backend/ext/import-data/import-channel" AND (param="driverClassName" OR param="url") AND value MATCHES "[^a-zA-Z0-9_\-\.]+")