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Vulnerabilities

CVE-2026-2951

Medium
CWE-79 — Weakness Type
Published: Apr 23, 2026  ·  Modified: Apr 26, 2026  ·  Source: NVD
CVSS v3
5.4
🔗 NVD Official
📄 Description (English)

The Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

🤖 AI Executive Summary

The Gutentor WordPress plugin (versions ≤3.5.5) contains a Stored XSS vulnerability allowing authenticated contributors to inject malicious scripts into pages. While requiring contributor-level access, this poses significant risk to Saudi organizations using WordPress for content management, particularly government and corporate websites. No patch is currently available, requiring immediate compensating controls.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 28, 2026 00:21
🇸🇦 Saudi Arabia Impact Assessment
High impact for Saudi government agencies, municipalities, and corporate websites using WordPress with Gutentor. Most at-risk sectors: Government (NCA, CITC), Banking (SAMA-regulated institutions), Healthcare (MOH), and E-commerce platforms. The vulnerability allows privilege escalation from contributor to site-wide compromise through stored XSS, potentially affecting customer data, financial transactions, and critical government communications. Saudi organizations with multiple content contributors face elevated risk.
🏢 Affected Saudi Sectors
Government (NCA, CITC, Municipalities) Banking and Financial Services (SAMA-regulated) Healthcare (MOH, Private Hospitals) E-commerce and Retail Education (Universities, Schools) Telecommunications Energy Sector
⚖️ Saudi Risk Score (AI)
6.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Audit all WordPress installations using Gutentor plugin versions ≤3.5.5 across your organization
2. Restrict contributor-level access to only trusted personnel; implement principle of least privilege
3. Disable Gutentor plugin functionality until patch is available
4. Review page/post revision history for suspicious script injections

COMPENSATING CONTROLS:
1. Implement Web Application Firewall (WAF) rules to detect and block XSS payloads in POST requests
2. Enable WordPress security plugins (Wordfence, Sucuri) with XSS detection signatures
3. Apply Content Security Policy (CSP) headers to prevent inline script execution
4. Implement strict input validation on all page builder fields using server-side sanitization
5. Enable WordPress revision control and audit logging for all page modifications

DETECTION RULES:
1. Monitor WordPress database for script tags (<script>, javascript:, onerror=, onload=) in post_content fields
2. Alert on contributor role account creation and permission changes
3. Log all page/post modifications with contributor-level accounts
4. Monitor HTTP responses for unexpected JavaScript in page content

PATCHING STRATEGY:
1. Monitor Gutentor GitHub/plugin repository for security updates
2. Plan immediate upgrade to patched version when available
3. Consider alternative page builders (Elementor, Divi) if patch delays exceed 30 days
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تدقيق جميع تثبيتات WordPress التي تستخدم مكون Gutentor بإصدارات ≤3.5.5 عبر مؤسستك
2. تقييد وصول المساهم إلى الموظفين الموثوقين فقط؛ تطبيق مبدأ أقل امتياز
3. تعطيل وظائف مكون Gutentor حتى يتوفر التصحيح
4. مراجعة سجل مراجعات الصفحة/المنشور للبحث عن حقن البرامج النصية المريبة

الضوابط التعويضية:
1. تطبيق قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن حمولات XSS وحجبها
2. تفعيل مكونات أمان WordPress (Wordfence, Sucuri) مع توقيعات كشف XSS
3. تطبيق رؤوس سياسة أمان المحتوى (CSP) لمنع تنفيذ البرامج النصية المضمنة
4. تطبيق التحقق الصارم من المدخلات على جميع حقول منشئ الصفحات باستخدام التطهير من جانب الخادم
5. تفعيل التحكم في مراجعات WordPress وتسجيل التدقيق لجميع تعديلات الصفحة

قواعد الكشف:
1. مراقبة قاعدة بيانات WordPress للبحث عن علامات البرامج النصية في حقول post_content
2. التنبيه عند إنشاء حساب دور المساهم وتغييرات الأذونات
3. تسجيل جميع تعديلات الصفحة/المنشور باستخدام حسابات على مستوى المساهم
4. مراقبة استجابات HTTP للبحث عن JavaScript غير المتوقع في محتوى الصفحة

استراتيجية التصحيح:
1. مراقبة مستودع Gutentor GitHub/المكون للتحديثات الأمنية
2. التخطيط للترقية الفورية إلى الإصدار المصحح عند توفره
3. النظر في منشئي صفحات بديلة (Elementor, Divi) إذا تجاوزت تأخيرات التصحيح 30 يوماً
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.2.1 - User access management and authentication A.6.1.2 - Information security roles and responsibilities A.12.2.1 - Monitoring and logging of user activities A.14.2.1 - Secure development policy
🔵 SAMA CSF
ID.AM-2 - Software inventory and management PR.AC-1 - Access control policy and procedures DE.CM-1 - System monitoring and anomaly detection RS.MI-2 - Incident response and containment
🟡 ISO 27001:2022
A.5.1.1 - Policies for information security A.6.1.1 - Information security roles and responsibilities A.12.2.1 - Monitoring and logging A.14.2.1 - Secure development policy
🟣 PCI DSS v4.0.1
Requirement 6.5.1 - Injection flaws prevention Requirement 6.5.7 - Cross-site scripting (XSS) prevention Requirement 10.2 - Implement automated audit trails
📊 CVSS Score
5.4
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionR — Required
ScopeC — Changed
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityN — None / Network
📋 Quick Facts
Severity Medium
CVSS Score5.4
CWECWE-79
EPSS0.01%
Exploit No
Patch ✗ No
Published 2026-04-23
Source Feed nvd
🇸🇦 Saudi Risk Score
6.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-79
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