📄 Description (English)
A vulnerability was identified in z-9527 admin 1.0/2.0. This impacts an unknown function of the file /server/routes/user.js of the component User Update Endpoint. Such manipulation of the argument isAdmin with the input 1 leads to dynamically-determined object attributes. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
🤖 AI Executive Summary
CVE-2026-5251 is a privilege escalation vulnerability in z-9527 admin 1.0/2.0 affecting the User Update Endpoint (/server/routes/user.js). An attacker can manipulate the isAdmin parameter to gain administrative privileges through dynamic object attribute assignment. With a CVSS score of 6.3 and publicly available exploit code, this poses a moderate but exploitable risk to organizations using this software.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 18, 2026 10:49
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations using z-9527 admin software in administrative and management systems. Government agencies (NCA, CITC), banking sector institutions managing user access controls, and healthcare organizations using this platform for administrative functions face the highest risk. The privilege escalation capability could allow unauthorized access to sensitive administrative functions, potentially compromising data integrity and system security across critical infrastructure sectors.
🏢 Affected Saudi Sectors
Government (NCA, CITC)
Banking and Financial Services (SAMA regulated)
Healthcare
Telecommunications
Energy and Utilities
Education
E-commerce
🎯 MITRE ATT&CK Techniques
T1078 - Valid Accounts
T1078.002 - Valid Accounts: Domain Accounts
T1078.003 - Valid Accounts: Local Accounts
T1548 - Abuse Elevation Control Mechanism
T1548.002 - Abuse Elevation Control Mechanism: Bypass User Account Control
T1110 - Brute Force
T1190 - Exploit Public-Facing Application
T1566 - Phishing
T1199 - Trusted Relationship
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all instances of z-9527 admin 1.0/2.0 in your environment and document their locations
2. Restrict network access to the /server/routes/user.js endpoint using firewall rules or WAF policies
3. Implement strict input validation on the isAdmin parameter - whitelist only boolean values (true/false) and reject numeric inputs (1, 0)
4. Enable comprehensive logging and monitoring of all user update requests, specifically tracking isAdmin parameter changes
Compensating Controls:
5. Implement role-based access control (RBAC) at the application layer to prevent unauthorized privilege escalation
6. Deploy Web Application Firewall (WAF) rules to block requests with suspicious isAdmin parameter manipulation patterns
7. Conduct immediate audit of user accounts with admin privileges to identify unauthorized escalations
8. Implement multi-factor authentication (MFA) for all administrative accounts
Detection Rules:
- Monitor for POST/PUT requests to /server/routes/user.js with isAdmin parameter set to numeric values (1, 0)
- Alert on any user account privilege changes outside normal administrative workflows
- Track failed and successful authentication attempts to administrative accounts
- Monitor for rapid successive user update requests from single IP addresses
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. حدد جميع حالات z-9527 admin 1.0/2.0 في بيئتك وقم بتوثيق مواقعها
2. قيد الوصول إلى نقطة النهاية /server/routes/user.js باستخدام قواعد جدار الحماية أو سياسات WAF
3. طبق التحقق الصارم من المدخلات على معامل isAdmin - قائمة بيضاء القيم المنطقية فقط (صحيح/خاطئ) وارفض المدخلات الرقمية (1، 0)
4. فعّل تسجيل المراقبة الشامل لجميع طلبات تحديث المستخدم، مع تتبع تغييرات معامل isAdmin
الضوابط التعويضية:
5. طبق التحكم في الوصول القائم على الأدوار (RBAC) على مستوى التطبيق لمنع تصعيد الامتيازات غير المصرح به
6. نشر قواعد جدار تطبيقات الويب (WAF) لحجب الطلبات ذات أنماط التلاعب المريبة بمعامل isAdmin
7. أجرِ تدقيقاً فورياً للحسابات التي تتمتع بامتيازات إدارية لتحديد التصعيدات غير المصرح بها
8. طبق المصادقة متعددة العوامل (MFA) لجميع الحسابات الإدارية
قواعد الكشف:
- راقب طلبات POST/PUT إلى /server/routes/user.js مع تعيين معامل isAdmin على قيم رقمية (1، 0)
- أصدر تنبيهات لأي تغييرات في امتيازات حساب المستخدم خارج سير العمل الإداري العادي
- تتبع محاولات المصادقة الفاشلة والناجحة للحسابات الإدارية
- راقب طلبات تحديث المستخدم المتتالية السريعة من عناوين IP واحدة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies and Procedures
A.6.1.1 - Internal Organization - Access Control
A.6.2.1 - User Access Management
A.6.2.2 - User Registration and De-registration
A.7.1.1 - Physical and Environmental Security
A.9.1.1 - Access Control Policy
A.9.2.1 - User Registration and De-registration
A.9.2.5 - Access Rights Review
A.10.1.1 - Cryptography Policy
A.12.4.1 - Event Logging
A.12.4.3 - Administrator and Operator Logs
🔵 SAMA CSF
Governance - Policy and Risk Management
Governance - Organizational Structure
Governance - Third-party Risk Management
Protection - Access Control
Protection - Data Protection
Detection - Monitoring and Alerting
Response - Incident Management
🟡 ISO 27001:2022
5.15 - Access Control
5.16 - Identification and Authentication
5.17 - Access Rights
5.18 - Information Security in Supplier Relationships
6.6 - Segregation of Duties
8.2 - Privileged Access Rights
8.3 - Information Access Restriction
8.15 - Logging
8.16 - Monitoring Activities
🟣 PCI DSS v4.0.1
Requirement 2 - Default Security Parameters
Requirement 6 - Secure Development and Vulnerability Management
Requirement 7 - Restrict Access to Cardholder Data
Requirement 8 - Identify and Authenticate Access
Requirement 10 - Track and Monitor Access to Network Resources