📄 Description (English)
The Webmention plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.6.2 via the 'Tools::read' function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
🤖 AI Executive Summary
The Webmention WordPress plugin versions up to 5.6.2 contains a Server-Side Request Forgery (SSRF) vulnerability in the Tools::read function that allows authenticated subscribers to make arbitrary web requests from the server. This enables attackers to access internal services and potentially modify sensitive data. With no patch currently available, organizations using this plugin face immediate risk of internal network reconnaissance and lateral movement attacks.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 15, 2026 05:56
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations operating WordPress-based websites and portals are at risk, particularly: (1) Government agencies and ministries using WordPress for public-facing portals and internal content management; (2) Banking and financial institutions using WordPress for customer-facing websites; (3) Healthcare providers and MEWA-regulated entities with WordPress implementations; (4) Telecommunications companies (STC, Mobily, Zain) with WordPress infrastructure; (5) E-commerce and retail sectors. The vulnerability is particularly dangerous in environments where internal services (databases, APIs, admin panels) are accessible from the web server, allowing attackers to bypass network segmentation and access SAMA-regulated financial systems or NCA-critical infrastructure.
🏢 Affected Saudi Sectors
Government & Public Administration
Banking & Financial Services
Healthcare & Medical Services
Energy & Utilities
Telecommunications
E-commerce & Retail
Education
Media & Publishing
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Disable the Webmention plugin immediately if not actively required for business operations
2. If plugin is required, restrict access to Tools::read function via web application firewall (WAF) rules
3. Audit WordPress user accounts and remove unnecessary Subscriber-level accounts
4. Review WordPress access logs for suspicious activity from authenticated users
COMPENSATING CONTROLS:
1. Implement network segmentation to isolate WordPress servers from internal services
2. Deploy WAF rules to block requests to internal IP ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 127.0.0.1)
3. Restrict outbound connections from WordPress servers using firewall policies
4. Implement egress filtering to prevent server-to-server communication
5. Monitor outbound HTTP/HTTPS traffic from WordPress servers for anomalies
DETECTION:
1. Monitor WordPress logs for Tools::read function calls with unusual parameters
2. Alert on outbound connections to internal IP addresses from WordPress processes
3. Track failed authentication attempts followed by SSRF exploitation patterns
4. Monitor for DNS queries to internal hostnames from WordPress servers
PATCHING:
1. Monitor Webmention plugin repository for security updates
2. Consider alternative plugins with similar functionality that have better security records
3. If update becomes available, test in staging environment before production deployment
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تعطيل مكون Webmention فوراً إذا لم يكن مطلوباً بشكل نشط للعمليات التجارية
2. إذا كان المكون مطلوباً، قيد الوصول إلى دالة Tools::read عبر قواعد جدار الحماية لتطبيقات الويب
3. تدقيق حسابات مستخدمي WordPress وإزالة الحسابات غير الضرورية على مستوى المشترك
4. مراجعة سجلات الوصول إلى WordPress للبحث عن نشاط مريب من المستخدمين المصرحين
الضوابط التعويضية:
1. تنفيذ تقسيم الشبكة لعزل خوادم WordPress عن الخدمات الداخلية
2. نشر قواعد WAF لحظر الطلبات إلى نطاقات IP الداخلية
3. تقييد الاتصالات الصادرة من خوادم WordPress باستخدام سياسات جدار الحماية
4. تنفيذ تصفية الخروج لمنع الاتصال من خادم إلى خادم
5. مراقبة حركة HTTP/HTTPS الصادرة من خوادم WordPress للكشف عن الشذوذ
الكشف:
1. مراقبة سجلات WordPress لاستدعاءات دالة Tools::read بمعاملات غير عادية
2. التنبيه على الاتصالات الصادرة إلى عناوين IP الداخلية من عمليات WordPress
3. تتبع محاولات المصادقة الفاشلة متبوعة بأنماط استغلال SSRF
4. مراقبة استعلامات DNS إلى أسماء المضيفين الداخلية من خوادم WordPress
التصحيح:
1. مراقبة مستودع مكون Webmention للتحديثات الأمنية
2. النظر في المكونات البديلة ذات الوظائف المماثلة التي لديها سجلات أمان أفضل
3. إذا أصبح التحديث متاحاً، اختبره في بيئة التدريج قبل نشره في الإنتاج
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies (access control and authentication)
A.5.2.1 - User Access Management (principle of least privilege)
A.5.3.1 - Access Control (network segmentation and restriction)
A.8.1.1 - Cryptography (secure communication channels)
A.8.2.1 - Malware Protection (detection of malicious outbound traffic)
A.8.3.1 - Data Leakage Prevention (monitoring outbound connections)
🔵 SAMA CSF
Governance & Risk Management - Risk Assessment and Management
Information & Cybersecurity - Access Control and Authentication
Information & Cybersecurity - Network Security and Segmentation
Information & Cybersecurity - Monitoring and Incident Response
Operational Resilience - Business Continuity and Disaster Recovery
🟡 ISO 27001:2022
A.5.1.1 - Policies for information security
A.5.2.1 - Information security responsibilities
A.5.3.1 - Segregation of duties
A.6.1.1 - Internal organization
A.6.2.1 - Mobile device and teleworking
A.8.1.1 - User endpoint devices
A.8.2.1 - Privileged access rights
A.8.3.1 - Information access restriction
A.8.4.1 - Access to cryptographic keys
A.13.1.1 - Network controls
A.13.1.3 - Segregation of networks
🟣 PCI DSS v4.0.1
Requirement 1.1 - Firewall configuration standards
Requirement 1.3 - Network segmentation
Requirement 6.2 - Security patches and updates
Requirement 7.1 - Limit access to system components
Requirement 10.1 - Implement audit trails
🔗 References & Sources 4
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https://github.com/pfefferle/wordpress-webmention/blob/057223cee18a9e93b017d0f21db6ea77...
security@wordfence.com
https://plugins.trac.wordpress.org/browser/webmention/tags/5.6.2/includes/class-tools.p...
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3494831/webmention
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/02c9beba-dfa5-4a30-8355-62ff9...
security@wordfence.com