📄 Description (English)
Filterable Portfolio Gallery 1.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious JavaScript by entering payloads in the title field. Attackers can store JavaScript code like image tags with onerror handlers that execute when the gallery is previewed, affecting all users viewing the page.
🤖 AI Executive Summary
CVE-2021-47929 is a stored cross-site scripting (XSS) vulnerability in Filterable Portfolio Gallery 1.0 that allows authenticated attackers to inject malicious JavaScript through the title field. The vulnerability affects all users viewing the compromised gallery, potentially leading to session hijacking, credential theft, or malware distribution. While no public exploit is available and the CVSS score is medium (6.4), the stored nature of the vulnerability makes it persistent and dangerous in multi-user environments common in Saudi organizations.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 13, 2026 11:18
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations using Filterable Portfolio Gallery for web content management, particularly in government agencies, educational institutions, and corporate websites. Government entities (NCA oversight), universities, and media organizations are at highest risk. The stored XSS nature means compromised galleries could be used to target employees accessing internal portals or public-facing websites. Banking and financial sector websites using this plugin for portfolio displays face elevated risk of credential harvesting. The vulnerability is particularly concerning for organizations with limited security monitoring of WordPress/web plugin vulnerabilities.
🏢 Affected Saudi Sectors
Government
Education
Media and Publishing
Banking and Finance
Healthcare
Corporate/Enterprise
E-commerce
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify all instances of Filterable Portfolio Gallery 1.0 in your environment using vulnerability scanning tools
2. Restrict access to the gallery administration panel to trusted administrators only
3. Review audit logs for suspicious title field modifications or gallery access patterns
4. Audit all existing gallery titles for suspicious JavaScript payloads (look for <img, <script, onerror, onload tags)
Patching Guidance:
5. Contact the plugin developer for security updates or consider alternative portfolio gallery plugins with active security maintenance
6. If no patch is available, implement Web Application Firewall (WAF) rules to block XSS payloads in title fields
7. Apply input validation: sanitize and escape all user inputs in title fields before storage and display
8. Implement Content Security Policy (CSP) headers to prevent inline script execution
Compensating Controls:
9. Deploy HTML entity encoding for all gallery title outputs
10. Implement output encoding using htmlspecialchars() or equivalent functions
11. Use security headers: X-XSS-Protection, X-Content-Type-Options: nosniff
12. Enable WordPress security plugins with XSS detection capabilities
Detection Rules:
13. Monitor for POST requests to gallery title fields containing: <script, <img, onerror=, onload=, javascript:
14. Alert on modifications to gallery titles containing HTML/JavaScript special characters
15. Review user activity logs for authenticated users modifying gallery content
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع حالات Filterable Portfolio Gallery 1.0 في بيئتك باستخدام أدوات المسح الضوري
2. تقييد الوصول إلى لوحة إدارة المعرض للمسؤولين الموثوقين فقط
3. مراجعة سجلات التدقيق للتعديلات المريبة على حقل العنوان أو أنماط الوصول
4. تدقيق جميع عناوين المعرض الموجودة للبحث عن حمولات JavaScript المريبة
إرشادات التصحيح:
5. الاتصال بمطور المكون الإضافي للحصول على تحديثات أمان أو النظر في مكونات معرض بديلة
6. إذا لم يكن هناك تصحيح متاح، قم بتنفيذ قواعد جدار حماية تطبيقات الويب لحظر حمولات XSS
7. تطبيق التحقق من الإدخال: تطهير وتجنب جميع مدخلات المستخدم في حقول العنوان
8. تنفيذ رؤوس سياسة أمان المحتوى لمنع تنفيذ البرامج النصية المضمنة
الضوابط البديلة:
9. نشر ترميز كيان HTML لجميع مخرجات عنوان المعرض
10. تنفيذ ترميز الإخراج باستخدام htmlspecialchars() أو وظائف معادلة
11. استخدام رؤوس الأمان: X-XSS-Protection و X-Content-Type-Options
12. تفعيل مكونات أمان WordPress مع قدرات كشف XSS
قواعد الكشف:
13. مراقبة طلبات POST إلى حقول عنوان المعرض التي تحتوي على: <script أو <img أو onerror
14. التنبيه على التعديلات على عناوين المعرض التي تحتوي على أحرف خاصة HTML/JavaScript
15. مراجعة سجلات نشاط المستخدم للمستخدمين المصرح لهم الذين يعدلون محتوى المعرض
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.14.2.1 - Secure development policy and procedures
ECC 2024 A.14.2.5 - Security testing in development and acceptance
ECC 2024 A.14.3.1 - Information security requirements for external parties
ECC 2024 A.5.1.2 - Information security roles and responsibilities
🔵 SAMA CSF
SAMA CSF ID.BE-3.1 - Organizational objectives and strategies
SAMA CSF PR.AC-1 - Access control policy and procedures
SAMA CSF PR.DS-2 - Data security and protection
SAMA CSF DE.CM-1 - Detection and analysis of anomalies
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for information security
ISO 27001:2022 A.6.2 - User access management
ISO 27001:2022 A.8.2 - Platform security
ISO 27001:2022 A.14.2 - Secure development, testing and acceptance
🟣 PCI DSS v4.0.1
PCI DSS 6.5.7 - Cross-site scripting prevention
PCI DSS 6.5.1 - Injection flaws prevention
PCI DSS 11.3 - Penetration testing and vulnerability scanning
🔗 References & Sources 4
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http://www.filterable-portfolio.com/
disclosure@vulncheck.com
https://wordpress.org/plugins/fg-gallery/
disclosure@vulncheck.com
https://www.exploit-db.com/exploits/50458
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/wordpress-plugin-filterable-portfolio-gallery-stor...
disclosure@vulncheck.com