📄 Description (English)
The User Registration & Membership plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 5.1.2. This is due to incorrect authentication in the 'register_member' function. This makes it possible for unauthenticated attackers to log in a newly registered user on the site who has the 'urm_user_just_created' user meta set.
🤖 AI Executive Summary
CVE-2026-1779 is a critical authentication bypass vulnerability in the User Registration & Membership WordPress plugin (versions ≤5.1.2) that allows unauthenticated attackers to log in as newly registered users. The vulnerability stems from improper authentication checks in the 'register_member' function, exploiting the 'urm_user_just_created' user meta flag. While no public exploit is currently available, the high CVSS score (8.1) and ease of exploitation pose significant risk to WordPress installations in Saudi Arabia, particularly those managing user accounts for e-commerce, government portals, and financial services.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 26, 2026 04:50
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi organizations operating WordPress-based platforms: (1) Banking & Financial Services (SAMA-regulated): E-commerce platforms, customer portals, and payment gateways using this plugin face account takeover risks affecting customer trust and regulatory compliance. (2) Government & Public Sector (NCA oversight): Citizen portals, service registration systems, and government websites could be compromised, affecting national security and citizen data. (3) Healthcare Sector: Patient registration systems and health information portals could expose sensitive medical records. (4) E-commerce & Retail: Online stores managing customer accounts face inventory, payment, and customer data compromise. (5) Telecommunications (STC, Mobily): Customer self-service portals and account management systems are at risk. (6) Education: University and institution registration systems managing student/staff accounts. The vulnerability is particularly dangerous in Saudi context due to widespread WordPress adoption and the critical nature of user authentication in regulated sectors.
🏢 Affected Saudi Sectors
Banking & Financial Services
Government & Public Administration
Healthcare
E-commerce & Retail
Telecommunications
Education
Energy & Utilities
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.4
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all WordPress installations using User Registration & Membership plugin versions ≤5.1.2 across your organization
2. Disable the plugin immediately if not critical to operations, or restrict access to registration functionality
3. Review user meta tables for 'urm_user_just_created' flags and audit recent user registrations for suspicious accounts
4. Check authentication logs for unauthorized login attempts using newly created accounts
5. Force password reset for all users created in the last 30 days
PATCHING GUIDANCE:
1. Update User Registration & Membership plugin to version 5.1.3 or later immediately
2. Test patch in staging environment before production deployment
3. Verify plugin functionality post-update, particularly registration and login flows
COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement Web Application Firewall (WAF) rules to detect and block suspicious registration/login patterns
2. Enable two-factor authentication (2FA) for all user accounts, especially administrative accounts
3. Implement CAPTCHA on registration forms to prevent automated exploitation
4. Monitor and alert on login attempts from newly registered accounts within 24 hours of creation
5. Restrict registration functionality to authenticated users only if business logic permits
6. Implement IP-based rate limiting on registration and login endpoints
DETECTION RULES:
1. Monitor WordPress user meta table for 'urm_user_just_created' flag modifications
2. Alert on login events where user creation timestamp is within 1 hour of login
3. Track failed authentication attempts followed by successful login from same IP
4. Monitor for bulk user creation followed by immediate login activity
5. Log all calls to 'register_member' function with parameter analysis
6. Implement SIEM rules: (a) New user account created AND logged in within 5 minutes, (b) Login from IP address not in user's historical login pattern within 24 hours of account creation
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع تثبيتات WordPress التي تستخدم إضافة User Registration & Membership بالإصدارات ≤5.1.2 عبر المنظمة
2. تعطيل الإضافة فوراً إذا لم تكن حرجة للعمليات، أو تقييد الوصول إلى وظيفة التسجيل
3. مراجعة جداول بيانات المستخدم بحثاً عن علامات 'urm_user_just_created' وتدقيق التسجيلات الحديثة للحسابات المريبة
4. فحص سجلات المصادقة لمحاولات تسجيل دخول غير مصرح بها باستخدام حسابات مسجلة حديثاً
5. فرض إعادة تعيين كلمة المرور لجميع المستخدمين المسجلين في آخر 30 يوماً
إرشادات التصحيح:
1. تحديث إضافة User Registration & Membership إلى الإصدار 5.1.3 أو أحدث فوراً
2. اختبار التصحيح في بيئة التطوير قبل نشره في الإنتاج
3. التحقق من وظائف الإضافة بعد التحديث، خاصة تدفقات التسجيل وتسجيل الدخول
الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن أنماط التسجيل/تسجيل الدخول المريبة وحجبها
2. تفعيل المصادقة متعددة العوامل (2FA) لجميع حسابات المستخدمين، خاصة حسابات المسؤولين
3. تنفيذ CAPTCHA على نماذج التسجيل لمنع الاستغلال الآلي
4. مراقبة والتنبيه على محاولات تسجيل الدخول من الحسابات المسجلة حديثاً خلال 24 ساعة من الإنشاء
5. تقييد وظيفة التسجيل للمستخدمين المصرح لهم فقط إذا سمحت منطق العمل
6. تنفيذ تحديد معدل قائم على IP على نقاط نهاية التسجيل وتسجيل الدخول
قواعد الكشف:
1. مراقبة جدول بيانات المستخدم في WordPress بحثاً عن تعديلات علم 'urm_user_just_created'
2. التنبيه على أحداث تسجيل الدخول حيث يكون طابع زمن إنشاء المستخدم في غضون ساعة واحدة من تسجيل الدخول
3. تتبع محاولات المصادقة الفاشلة متبوعة بتسجيل دخول ناجح من نفس عنوان IP
4. مراقبة إنشاء مستخدمين مجموعة متبوعة بنشاط تسجيل دخول فوري
5. تسجيل جميع استدعاءات دالة 'register_member' مع تحليل المعاملات
6. تنفيذ قواعد SIEM: (أ) تم إنشاء حساب مستخدم جديد وتسجيل الدخول في غضون 5 دقائق، (ب) تسجيل دخول من عنوان IP ليس في نمط تسجيل الدخول التاريخي للمستخدم خلال 24 ساعة من إنشاء الحساب
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.2.1 - User Access Control and Authentication
5.2.2 - User Identification and Authentication
5.2.3 - Password Management
5.3.1 - Access Rights Management
6.1.1 - Information Security Event Logging
6.1.2 - Protection of Log Information
🔵 SAMA CSF
ID.AM-1 - Physical and cyber assets are inventoried
PR.AC-1 - Identities and credentials are issued and managed
PR.AC-2 - Physical access is managed
PR.AC-3 - Remote access is managed
PR.AC-4 - Access rights and privileges are managed
DE.CM-1 - The network is monitored to detect potential cybersecurity events
DE.CM-3 - Personnel activity is monitored to detect potential cybersecurity events
🟡 ISO 27001:2022
A.5.1.1 - Policies for information security
A.6.1.1 - Information security roles and responsibilities
A.8.1.1 - User endpoint devices
A.8.2.1 - User registration and de-registration
A.8.2.2 - User access provisioning
A.8.2.3 - Management of privileged access rights
A.8.2.4 - Management of secret authentication information of users
A.8.3.1 - Password management
A.9.2.1 - User registration and access provisioning
A.9.4.1 - Information access restriction
A.12.4.1 - Event logging
🟣 PCI DSS v4.0.1
Requirement 2.1 - Always change vendor-supplied defaults
Requirement 6.2 - Ensure security patches are installed
Requirement 8.1 - Assign unique ID to each person with computer access
Requirement 8.2 - Ensure proper user authentication
Requirement 8.3 - Restrict access to cardholder data
Requirement 10.1 - Implement audit trails