CVE-2026-2141
📋 TL;DR
This CVE describes an improper authorization vulnerability in WuKongOpenSource WukongCRM that allows attackers to bypass access controls via URL manipulation. Remote exploitation is possible, affecting all users of WukongCRM up to version 11.3.3. The vulnerability is in the gateway component's permission service implementation.
💻 Affected Systems
- WuKongOpenSource WukongCRM
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could gain unauthorized access to sensitive CRM data, modify user permissions, or perform administrative functions without proper authentication.
Likely Case
Unauthorized access to restricted functionality or data within the CRM system, potentially leading to data exposure or manipulation.
If Mitigated
Limited impact with proper network segmentation and access controls, but still represents a security weakness.
🎯 Exploit Status
Exploit details have been publicly released and remote exploitation is possible
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
No official patch available. Consider upgrading to any version beyond 11.3.3 if released by vendor.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to WukongCRM gateway component to trusted IPs only
iptables -A INPUT -p tcp --dport [WUKONG_PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [WUKONG_PORT] -j DROP
Web Application Firewall
allImplement WAF rules to detect and block suspicious URL patterns targeting the gateway component
🧯 If You Can't Patch
- Implement strict network segmentation to isolate WukongCRM from untrusted networks
- Enable detailed logging and monitoring for unauthorized access attempts to gateway URLs
🔍 How to Verify
Check if Vulnerable:
Check WukongCRM version. If version is 11.3.3 or earlier, system is vulnerable.Check Version:
Check application version in admin panel or deployment configurationVerify Fix Applied:
Verify version is higher than 11.3.3 or test authorization controls for gateway URLs📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to gateway URLs
- Failed authorization attempts followed by successful access
- Requests bypassing normal authentication flows
Network Indicators:
- Unusual traffic to gateway endpoints from unexpected sources
- Patterns of URL manipulation attempts
SIEM Query:
source="wukongcrm" AND (url="*gateway*" OR url="*PermissionServiceImpl*") AND status="200" AND user="anonymous"