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CVE-2026-4080

Medium

CWE-79 — Weakness Type

                    Published: Jun 2, 2026                      ·  Modified: Jun 5, 2026                      ·  Source: NVD                

CVSS v3

6.4

🔗 NVD Official

📄 Description (English)

The Easy Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_to_cart' shortcode in all versions up to and including 1.8. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the ectp_add_to_cart() function uses sanitize_text_field() on shortcode attributes like 'itemid', 'product_name', 'product_desc', 'product_qty', and 'price' before inserting them into double-quoted HTML attributes. While sanitize_text_field() strips HTML tags, it does not escape double quote characters, allowing an attacker to break out of the HTML attribute context and inject arbitrary event handlers. 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 Easy Cart WordPress plugin (versions ≤1.8) contains a Stored Cross-Site Scripting (XSS) vulnerability in the 'add_to_cart' shortcode due to insufficient input sanitization. Authenticated attackers with Contributor-level access can inject malicious scripts through shortcode attributes that execute when users view affected pages. While no public exploit exists and patches are unavailable, the vulnerability poses a significant risk to WordPress sites in Saudi Arabia that rely on this e-commerce plugin.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Jun 3, 2026 13:11

🇸🇦 Saudi Arabia Impact Assessment

This vulnerability primarily affects Saudi e-commerce businesses, small-to-medium enterprises (SMEs), and government agencies using WordPress for online services. High-risk sectors include: (1) Retail and E-commerce platforms selling goods locally; (2) Banking and financial services offering online shopping integrations; (3) Government entities providing citizen services through WordPress; (4) Healthcare providers with online appointment or product sales; (5) Telecommunications companies with online storefronts. The vulnerability allows attackers to compromise customer data, inject malware, deface websites, or conduct phishing attacks against Saudi users. Organizations under SAMA and NCA oversight face compliance violations if customer data is compromised.

🏢 Affected Saudi Sectors

E-commerce and Retail Banking and Financial Services Government and Public Administration Healthcare and Pharmaceuticals Telecommunications Hospitality and Tourism Education Real Estate

🎯 MITRE ATT&CK Techniques

T1190 - Exploit Public-Facing Application (WordPress plugin vulnerability) T1598 - Phishing (XSS for credential harvesting) T1566 - Phishing (malicious content delivery via injected scripts) T1059 - Command and Scripting Interpreter (JavaScript execution) T1547 - Boot or Logon Initialization Scripts (persistent XSS) T1539 - Steal Web Session Cookie (session hijacking via XSS) T1005 - Data from Local System (customer data exfiltration)

⚖️ Saudi Risk Score (AI)

6.8

/ 10.0

🔧 Remediation Steps (English)

IMMEDIATE ACTIONS:

1. Audit all WordPress sites using Easy Cart plugin version ≤1.8 across your organization

2. Restrict Contributor-level access to only trusted personnel; review and revoke unnecessary user accounts

3. Disable the 'add_to_cart' shortcode if not actively used; remove from all pages/posts

4. Implement Web Application Firewall (WAF) rules to detect and block XSS payloads in shortcode attributes

PATCHING GUIDANCE:

5. Contact Easy Cart plugin developers for security updates; monitor official repository for patches

6. If no patch becomes available within 30 days, consider migrating to alternative e-commerce plugins (WooCommerce, Shopify integration, etc.)

7. Upgrade WordPress core and all other plugins to latest versions

COMPENSATING CONTROLS:

8. Implement Content Security Policy (CSP) headers to restrict inline script execution

9. Enable WordPress security plugins (Wordfence, Sucuri) with XSS detection rules

10. Apply output escaping manually: modify shortcode handler to use wp_kses_post() or esc_attr() on all attributes

11. Conduct code review of Easy Cart plugin; apply custom patches if source code is available

DETECTION RULES:

12. Monitor WordPress logs for shortcode attribute modifications containing quotes, event handlers (onclick, onerror, onload)

13. Alert on posts/pages containing patterns: [add_to_cart...="..." or [add_to_cart...=...on

14. Review post revisions for suspicious shortcode changes by Contributor+ users

15. Implement SIEM rules to detect XSS payloads in HTTP requests to WordPress sites

🔧 خطوات المعالجة (العربية)

الإجراءات الفورية:

1. تدقيق جميع مواقع WordPress التي تستخدم مكون Easy Cart الإصدار ≤1.8 عبر مؤسستك

2. تقييد وصول مستوى المساهم للموظفين الموثوقين فقط؛ مراجعة وإلغاء حسابات المستخدمين غير الضرورية

3. تعطيل اختصار 'add_to_cart' إذا لم يكن قيد الاستخدام النشط؛ إزالته من جميع الصفحات/المنشورات

4. تنفيذ قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن حقن XSS وحجبها في سمات الاختصار

إرشادات التصحيح:

5. اتصل بمطوري مكون Easy Cart للحصول على تحديثات الأمان؛ راقب المستودع الرسمي للتصحيحات

6. إذا لم يتوفر تصحيح خلال 30 يوماً، فكر في الترحيل إلى مكونات التجارة الإلكترونية البديلة (WooCommerce، تكامل Shopify، إلخ)

7. ترقية نواة WordPress وجميع المكونات الأخرى إلى أحدث الإصدارات

الضوابط التعويضية:

8. تنفيذ رؤوس سياسة أمان المحتوى (CSP) لتقييد تنفيذ البرامج النصية المضمنة

9. تفعيل مكونات أمان WordPress (Wordfence، Sucuri) مع قواعد كشف XSS

10. تطبيق الهروب من الإخراج يدويًا: تعديل معالج الاختصار لاستخدام wp_kses_post() أو esc_attr() على جميع السمات

11. إجراء مراجعة الكود لمكون Easy Cart؛ تطبيق التصحيحات المخصصة إذا كان الكود المصدري متاحاً

قواعد الكشف:

12. مراقبة سجلات WordPress لتعديلات سمات الاختصار التي تحتوي على علامات اقتباس ومعالجات الأحداث (onclick، onerror، onload)

13. تنبيه على المنشورات/الصفحات التي تحتوي على أنماط: [add_to_cart...="..." أو [add_to_cart...=...on

14. مراجعة مراجعات المنشورات للتغييرات المريبة في الاختصار من قبل مستخدمي Contributor+

15. تنفيذ قواعد SIEM للكشف عن حمولات XSS في طلبات HTTP إلى مواقع WordPress

📋 Regulatory Compliance Mapping

🟢 NCA ECC 2024

ECC 2024 A.14.2.1 - Secure development policy and procedures ECC 2024 A.14.2.5 - Secure coding practices and code review ECC 2024 A.14.3.1 - Testing of security functionality ECC 2024 A.6.2.1 - User access management and authorization ECC 2024 A.12.6.1 - Management of technical vulnerabilities

🔵 SAMA CSF

SAMA CSF 2.1 - Governance and Risk Management (vulnerability management) SAMA CSF 3.2 - Technical Security Controls (application security, input validation) SAMA CSF 3.3 - Cryptography and Data Protection (data integrity from XSS attacks) SAMA CSF 4.1 - Detection and Response (security monitoring and incident detection)

🟡 ISO 27001:2022

ISO 27001:2022 A.8.1.1 - User endpoint devices security ISO 27001:2022 A.8.2.3 - Access control to information ISO 27001:2022 A.14.2.1 - Secure development policy ISO 27001:2022 A.14.2.5 - Secure coding practices ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities

🟣 PCI DSS v4.0.1

PCI DSS 6.5.7 - Cross-site scripting (XSS) prevention PCI DSS 6.2 - Security patches and updates PCI DSS 2.2.4 - Configuration standards for system components PCI DSS 11.3 - Penetration testing and vulnerability scanning

🔗 References & Sources 15

🔗

https://plugins.trac.wordpress.org/browser/easy-cart/tags/1.8/plugin.php#L263

CVE-2026-4080

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