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Vulnerabilities

CVE-2026-27449

High
Umbraco Engage is a business intelligence platform. A vulnerability has been identified in Umbraco Engage prior to versions 16.2.1 and 17.1.1 where certain API endpoints are exposed without enforcing
CWE-284 — Weakness Type
Published: Feb 26, 2026  ·  Modified: Mar 5, 2026  ·  Source: NVD
CVSS v3
7.5
🔗 NVD Official
📄 Description (English)

Umbraco Engage is a business intelligence platform. A vulnerability has been identified in Umbraco Engage prior to versions 16.2.1 and 17.1.1 where certain API endpoints are exposed without enforcing authentication or authorization checks. The affected endpoints can be accessed directly over the network without requiring a valid session or user credentials. By supplying a user-controlled identifier parameter (e.g., ?id=), an attacker can retrieve sensitive data associated with arbitrary records. Because no access control validation is performed, the endpoints are vulnerable to enumeration attacks, allowing attackers to iterate over identifiers and extract data at scale. An unauthenticated attacker can retrieve sensitive Engage-related data by directly querying the affected API endpoints. The vulnerability allows arbitrary record access through predictable or enumerable identifiers. The confidentiality impact is considered high. No direct integrity or availability impact has been identified. The scope of exposed data depends on the deployment but may include analytics data, tracking data, customer-related information, or other Engage-managed content. The vulnerability affects both v16 and v17. Patches have already been released. Users are advised to update to 16.2.1 or 17.1.1. No known workarounds are available.

🤖 AI Executive Summary

Umbraco Engage versions prior to 16.2.1 and 17.1.1 contain an authentication bypass vulnerability in API endpoints that allows unauthenticated attackers to retrieve sensitive data through direct access and enumeration attacks. The vulnerability has a CVSS score of 7.5 (high) and poses significant confidentiality risks to organizations using this business intelligence platform. Patches are available and immediate patching is strongly recommended to prevent unauthorized data exposure.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 3, 2026 20:44
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations in the financial services sector (banking institutions regulated by SAMA), government agencies, and enterprises using Umbraco Engage for customer analytics and business intelligence face significant risk. The vulnerability could expose customer data, transaction analytics, and business intelligence information. Banking sector exposure is particularly critical given SAMA's strict data protection requirements. Government entities using this platform for citizen data analytics or service delivery analytics are also at elevated risk. Telecommunications companies (STC, Mobily) and e-commerce platforms using Engage for customer behavior analytics could face data exposure affecting millions of customers.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Telecommunications E-commerce and Retail Healthcare Insurance Energy and Utilities
⚖️ Saudi Risk Score (AI)
8.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all instances of Umbraco Engage running versions prior to 16.2.1 (v16 branch) or 17.1.1 (v17 branch) in your environment
2. Assess the sensitivity of data exposed through Engage API endpoints (customer data, analytics, tracking information)
3. Review access logs for the past 90 days to identify any suspicious API queries or enumeration patterns

PATCHING GUIDANCE:
1. Prioritize patching for production systems immediately
2. Update Umbraco Engage to version 16.2.1 or 17.1.1 or later
3. Test patches in staging environment before production deployment
4. Plan maintenance window with minimal business impact

COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement network-level access controls restricting API endpoint access to authorized IP ranges only
2. Deploy Web Application Firewall (WAF) rules to block direct API endpoint access from untrusted sources
3. Implement rate limiting on API endpoints to prevent enumeration attacks
4. Monitor API access logs for suspicious patterns (sequential ID enumeration, bulk data requests)

DETECTION RULES:
1. Alert on API requests to /api/* endpoints without valid authentication tokens
2. Monitor for sequential or rapid ID parameter variations (e.g., ?id=1, ?id=2, ?id=3)
3. Track unusual volume of API requests from single source IP
4. Log all API responses containing sensitive data fields accessed without authentication
5. Implement SIEM rules to detect enumeration patterns: >10 failed authentication attempts in 5 minutes
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع حالات Umbraco Engage التي تعمل بإصدارات سابقة للإصدار 16.2.1 (فرع v16) أو 17.1.1 (فرع v17) في بيئتك
2. تقييم حساسية البيانات المكشوفة من خلال نقاط نهاية Engage API (بيانات العملاء والتحليلات والمعلومات التتبعية)
3. مراجعة سجلات الوصول لآخر 90 يوماً لتحديد أي استعلامات API مريبة أو أنماط تعداد

إرشادات التصحيح:
1. أولويات التصحيح للأنظمة الإنتاجية على الفور
2. تحديث Umbraco Engage إلى الإصدار 16.2.1 أو 17.1.1 أو إصدار أحدث
3. اختبار التصحيحات في بيئة التجريب قبل نشر الإنتاج
4. تخطيط نافذة الصيانة بأقل تأثير على الأعمال

الضوابط التعويضية (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ ضوابط الوصول على مستوى الشبكة لتقييد وصول نقطة نهاية API إلى نطاقات IP المصرح بها فقط
2. نشر قواعد جدار حماية تطبيقات الويب (WAF) لحظر الوصول المباشر إلى نقطة نهاية API من مصادر غير موثوقة
3. تنفيذ تحديد معدل على نقاط نهاية API لمنع هجمات التعداد
4. مراقبة سجلات وصول API للأنماط المريبة (تعداد معرف متسلسل وطلبات بيانات مجمعة)

قواعد الكشف:
1. تنبيه على طلبات API إلى نقاط نهاية /api/* بدون رموز مصادقة صحيحة
2. مراقبة تباينات معامل ID المتسلسلة أو السريعة (على سبيل المثال، ?id=1، ?id=2، ?id=3)
3. تتبع حجم غير عادي من طلبات API من عنوان IP واحد
4. تسجيل جميع استجابات API التي تحتوي على حقول بيانات حساسة يتم الوصول إليها بدون مصادقة
5. تنفيذ قواعد SIEM للكشف عن أنماط التعداد: >10 محاولات مصادقة فاشلة في 5 دقائق
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policy (authentication and authorization enforcement) ECC 2024 A.6.1.2 - User Registration and Access Rights Management ECC 2024 A.8.2.1 - User Access Management (authentication mechanisms) ECC 2024 A.9.2.1 - User Access Management (access control implementation) ECC 2024 A.12.4.1 - Event Logging (security-relevant events)
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Asset Management (inventory of systems and data) SAMA CSF PR.AC-1 - Access Control Policy (authentication and authorization) SAMA CSF PR.AC-3 - Access Enforcement (least privilege principle) SAMA CSF DE.CM-1 - Detection and Analysis (monitoring and detection) SAMA CSF DE.AE-1 - Anomalies and Events (security event detection)
🟡 ISO 27001:2022
ISO 27001:2022 A.5.3 - Segregation of Duties ISO 27001:2022 A.8.2 - User Registration and Access Rights ISO 27001:2022 A.8.3 - User Access Management ISO 27001:2022 A.9.2 - User Access Management ISO 27001:2022 A.9.4 - Access Control to Information and Other Associated Assets ISO 27001:2022 A.12.4 - Logging
🟣 PCI DSS v4.0.1
PCI DSS 2.1 - Default Security Parameters PCI DSS 6.5.10 - Broken Authentication PCI DSS 7.1 - Limit Access to System Components PCI DSS 10.2 - Implement Automated Audit Trails
📊 CVSS Score
7.5
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityN — None / Network
AvailabilityN — None / Network
📋 Quick Facts
Severity High
CVSS Score7.5
CWECWE-284
EPSS0.06%
Exploit No
Patch ✓ Yes
Published 2026-02-26
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
8.2
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
CWE-284
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