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Vulnerabilities

CVE-2026-4076

Medium
CWE-79 — Weakness Type
Published: Apr 22, 2026  ·  Modified: Apr 25, 2026  ·  Source: NVD
CVSS v3
6.4
🔗 NVD Official
📄 Description (English)

The Slider Bootstrap Carousel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'category' and 'template' shortcode attributes in all versions up to and including 1.0.7. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. The plugin uses extract() on shortcode_atts() to parse attributes, then directly outputs the $category variable into multiple HTML attributes (id, data-target, href) on lines 38, 47, 109, and 113 without applying esc_attr(). Similarly, the $template attribute flows into a class attribute on line 93 without 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 Slider Bootstrap Carousel WordPress plugin (versions ≤1.0.7) contains a Stored Cross-Site Scripting (XSS) vulnerability in shortcode attributes that allows authenticated contributors to inject malicious scripts. The vulnerability stems from insufficient input sanitization and output escaping on the 'category' and 'template' attributes, enabling persistent code execution when pages are accessed. With no patch currently available, organizations using this plugin face elevated risk of content manipulation and potential lateral movement within WordPress environments.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 16, 2026 15:18
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations operating WordPress-based websites and content management systems are at risk, particularly: (1) Government agencies and ministries using WordPress for public portals and information dissemination; (2) Banking and financial institutions leveraging WordPress for customer-facing content and marketing sites; (3) Healthcare providers (Ministry of Health, private hospitals) using WordPress for patient information portals; (4) Educational institutions (universities, training centers) hosting course materials and institutional websites; (5) Media and publishing organizations; (6) E-commerce platforms integrated with WordPress. The vulnerability is particularly concerning for organizations with multiple contributor-level users, as any compromised or malicious contributor can inject persistent XSS payloads affecting all site visitors.
🏢 Affected Saudi Sectors
Government & Public Administration Banking & Financial Services Healthcare & Pharmaceuticals Education & Training Media & Publishing E-commerce & Retail Telecommunications Energy & Utilities
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Audit all WordPress installations using Slider Bootstrap Carousel plugin and document affected instances
2. Restrict Contributor-level access to only trusted personnel; review and revoke unnecessary contributor accounts
3. Disable the plugin immediately if not critical to operations, or restrict shortcode usage to Administrator-only content
4. Review page/post revision history for suspicious 'category' or 'template' attribute values in shortcodes

PATCHING GUIDANCE:
1. Monitor the plugin's GitHub repository and WordPress.org plugin page for security updates
2. Contact the plugin developer requesting urgent security patch with proper input sanitization using sanitize_text_field() and output escaping using esc_attr()
3. If patch becomes available, test in staging environment before production deployment

COMPENSATING CONTROLS (until patch available):
1. Implement Web Application Firewall (WAF) rules to detect and block XSS patterns in shortcode attributes
2. Deploy Content Security Policy (CSP) headers to restrict inline script execution
3. Enable WordPress security plugins (Wordfence, Sucuri) with XSS detection capabilities
4. Implement strict output encoding at the application level for all shortcode rendering
5. Use WordPress capability restrictions to limit shortcode usage to administrators only

DETECTION RULES:
1. Monitor WordPress logs for shortcode usage containing script tags, event handlers (onclick, onerror), or encoded payloads
2. Search database for posts/pages containing shortcodes with suspicious 'category' or 'template' values: [slider-carousel category="<script" or category="javascript:" or template="on"
3. Implement file integrity monitoring on plugin files to detect unauthorized modifications
4. Monitor for unusual administrative activity creating/modifying posts with slider-carousel shortcodes
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تدقيق جميع تثبيتات WordPress التي تستخدم مكون Slider Bootstrap Carousel وتوثيق الحالات المتأثرة
2. تقييد الوصول على مستوى المساهم للموظفين الموثوقين فقط؛ مراجعة وإلغاء حسابات المساهمين غير الضروريين
3. تعطيل المكون فوراً إذا لم يكن حرجاً للعمليات، أو تقييد استخدام الاختصار للمحتوى الذي يقتصر على المسؤول
4. مراجعة سجل مراجعة الصفحة/المنشور للقيم المريبة في سمات 'الفئة' أو 'القالب' في الاختصارات

إرشادات التصحيح:
1. مراقبة مستودع GitHub للمكون وصفحة المكون على WordPress.org للتحديثات الأمنية
2. الاتصال بمطور المكون لطلب تصحيح أمني عاجل مع تطهير المدخلات المناسب باستخدام sanitize_text_field() والهروب من المخرجات باستخدام esc_attr()
3. إذا أصبح التصحيح متاحاً، اختبره في بيئة التدريج قبل نشر الإنتاج

الضوابط التعويضية (حتى يصبح التصحيح متاحاً):
1. تنفيذ قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن أنماط XSS وحجبها في سمات الاختصار
2. نشر رؤوس سياسة أمان المحتوى (CSP) لتقييد تنفيذ البرامج النصية المضمنة
3. تفعيل مكونات أمان WordPress (Wordfence, Sucuri) مع قدرات الكشف عن XSS
4. تنفيذ ترميز إخراج صارم على مستوى التطبيق لجميع عمليات عرض الاختصار
5. استخدام قيود قدرات WordPress لتقييد استخدام الاختصار على المسؤولين فقط

قواعد الكشف:
1. مراقبة سجلات WordPress لاستخدام الاختصار الذي يحتوي على علامات البرامج النصية أو معالجات الأحداث (onclick, onerror) أو الحمولات المشفرة
2. البحث في قاعدة البيانات عن المنشورات/الصفحات التي تحتوي على اختصارات بقيم مريبة في 'الفئة' أو 'القالب'
3. تنفيذ مراقبة سلامة الملفات على ملفات المكون للكشف عن التعديلات غير المصرح بها
4. مراقبة النشاط الإداري غير المعتاد الذي ينشئ/يعدل المنشورات باستخدام اختصارات slider-carousel
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.14.2.1 - Information security requirements for supplier relationships (plugin security) ECC 2024 A.14.2.5 - Addressing information security in supplier agreements ECC 2024 A.12.6.1 - Management of technical vulnerabilities ECC 2024 A.12.2.1 - Establishment of information security baselines
🔵 SAMA CSF
Governance & Risk Management - Vulnerability Management Protection & Prevention - Application Security Detection & Response - Security Monitoring Resilience - Business Continuity
🟡 ISO 27001:2022
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities ISO 27001:2022 A.14.2.1 - Supplier security requirements ISO 27001:2022 A.8.2.3 - Segregation of duties ISO 27001:2022 A.5.15 - Access control
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Ensure security patches are installed within defined timeframe PCI DSS 6.5.7 - Cross-site scripting prevention PCI DSS 2.2.4 - Configure system security parameters to prevent misuse
🔗 References & Sources 13
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/include...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/include...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/include...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/include...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/include...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/include...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc...
security@wordfence.com
🔗
https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc...
security@wordfence.com
🔗
https://www.wordfence.com/threat-intel/vulnerabilities/id/26fe0b7b-dbf8-467f-b5e2-86a85...
security@wordfence.com
📊 CVSS Score
6.4
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeC — Changed
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityN — None / Network
📋 Quick Facts
Severity Medium
CVSS Score6.4
CWECWE-79
EPSS0.02%
Exploit No
Patch ✗ No
Published 2026-04-22
Source Feed nvd
🇸🇦 Saudi Risk Score
6.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-79
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