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Vulnerabilities

CVE-2026-0609

Medium
The Logo Slider – Logo Carousel, Logo Showcase & Client Logo Slider Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the image alt text in all versions up to, and including
CWE-79 — Weakness Type
Published: Mar 21, 2026  ·  Modified: Mar 23, 2026  ·  Source: NVD
CVSS v3
6.4
🔗 NVD Official
📄 Description (English)

The Logo Slider – Logo Carousel, Logo Showcase & Client Logo Slider Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the image alt text in all versions up to, and including, 4.9.0 due to insufficient input sanitization and output escaping in the 'logo-slider' shortcode. This makes it possible for authenticated attackers, with author level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

🤖 AI Executive Summary

CVE-2026-0609 is a Stored Cross-Site Scripting (XSS) vulnerability in the Logo Slider WordPress plugin affecting versions up to 4.9.0. Authenticated users with author-level access can inject malicious scripts through image alt text in the logo-slider shortcode, which execute when pages are accessed. While currently unpatched, the vulnerability requires authenticated access, limiting immediate risk but posing significant threats to WordPress sites with compromised or malicious author accounts.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 14, 2026 06:01
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations using WordPress for content management—particularly government agencies, educational institutions, and small-to-medium enterprises—face elevated risk. The vulnerability primarily impacts: (1) Government/NCA entities managing public-facing websites; (2) Banking sector websites using WordPress for customer portals; (3) Healthcare organizations with WordPress-based patient information systems; (4) Telecom/STC subsidiary websites; (5) E-commerce platforms. The stored nature of the XSS means malicious content persists and affects all site visitors, potentially compromising user credentials, session tokens, and sensitive information. Organizations with weak author account management or shared WordPress credentials face heightened exposure.
🏢 Affected Saudi Sectors
Government and Public Administration Banking and Financial Services Healthcare and Medical Services Education and Universities Telecommunications E-commerce and Retail Energy and Utilities Media and Publishing
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Audit all WordPress sites using Logo Slider plugin versions ≤4.9.0 for suspicious logo entries with script tags or event handlers in alt text fields
2. Review author and editor user accounts for unauthorized or suspicious activity; disable compromised accounts immediately
3. Check WordPress audit logs for unauthorized shortcode modifications or logo uploads

Patching Guidance:
1. Disable the Logo Slider plugin immediately if not actively used; deactivate and delete from all WordPress installations
2. If plugin functionality is required, contact plugin developers for security updates or consider alternative logo carousel plugins with better security records
3. Implement a Web Application Firewall (WAF) rule to block requests containing script tags in logo-slider shortcode parameters

Compensating Controls:
1. Restrict author-level access to trusted personnel only; implement role-based access controls (RBAC)
2. Enable WordPress security plugins (e.g., Wordfence, Sucuri) with real-time malware scanning
3. Implement Content Security Policy (CSP) headers to prevent inline script execution
4. Enable WordPress nonce verification for all shortcode submissions
5. Regularly scan WordPress database for malicious shortcode patterns using: SELECT * FROM wp_posts WHERE post_content LIKE '%<script%' OR post_content LIKE '%javascript:%'

Detection Rules:
1. Monitor for POST requests to wp-admin/admin-ajax.php with 'logo-slider' parameters containing HTML/JavaScript
2. Alert on modifications to posts/pages containing logo-slider shortcodes by non-administrative users
3. Log and review all author-level account logins, especially from unusual IP addresses
4. Implement IDS signatures for XSS payloads in WordPress shortcode parameters
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تدقيق جميع مواقع WordPress التي تستخدم مكون Logo Slider الإصدارات ≤4.9.0 للبحث عن إدخالات شعارات مريبة تحتوي على علامات نصية أو معالجات أحداث في حقول النص البديل
2. مراجعة حسابات المستخدمين على مستوى المؤلف والمحرر للبحث عن نشاط غير مصرح به أو مريب؛ تعطيل الحسابات المخترقة فوراً
3. التحقق من سجلات تدقيق WordPress للبحث عن تعديلات اختصار غير مصرح بها أو تحميلات شعارات

إرشادات التصحيح:
1. تعطيل مكون Logo Slider فوراً إذا لم يكن قيد الاستخدام النشط؛ إلغاء التفعيل والحذف من جميع تثبيتات WordPress
2. إذا كانت وظيفة المكون مطلوبة، اتصل بمطوري المكون للحصول على تحديثات أمان أو فكر في مكونات بديلة لعرض الشعارات بسجلات أمان أفضل
3. تنفيذ قاعدة جدار حماية تطبيقات الويب (WAF) لحظر الطلبات التي تحتوي على علامات نصية في معاملات اختصار logo-slider

الضوابط التعويضية:
1. تقييد الوصول على مستوى المؤلف للموظفين الموثوقين فقط؛ تنفيذ التحكم في الوصول القائم على الأدوار (RBAC)
2. تفعيل مكونات أمان WordPress (مثل Wordfence و Sucuri) مع المسح الفوري للبرامج الضارة
3. تنفيذ رؤوس سياسة أمان المحتوى (CSP) لمنع تنفيذ النصوص البرمجية المضمنة
4. تفعيل التحقق من nonce في WordPress لجميع تقديمات الاختصار
5. مسح قاعدة بيانات WordPress بانتظام للبحث عن أنماط اختصار ضارة باستخدام: SELECT * FROM wp_posts WHERE post_content LIKE '%<script%' OR post_content LIKE '%javascript:%'

قواعد الكشف:
1. مراقبة طلبات POST إلى wp-admin/admin-ajax.php مع معاملات 'logo-slider' تحتوي على HTML/JavaScript
2. التنبيه على تعديلات المنشورات/الصفحات التي تحتوي على اختصارات logo-slider من قبل مستخدمين غير إداريين
3. تسجيل ومراجعة جميع عمليات تسجيل الدخول على مستوى المؤلف، خاصة من عناوين IP غير المعتادة
4. تنفيذ توقيعات IDS لحمولات XSS في معاملات اختصار WordPress
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.1 - Input Validation and Data Sanitization 5.1.2 - Output Encoding and Escaping 5.3.1 - Web Application Security Controls 5.3.2 - Secure Coding Practices 6.1.1 - Vulnerability Management and Patching
🔵 SAMA CSF
ID.RA-1 - Asset Management and Vulnerability Identification PR.DS-1 - Data Security and Protection PR.IP-1 - Security Policy and Process Development DE.CM-1 - Detection and Analysis RS.RP-1 - Response Planning
🟡 ISO 27001:2022
A.14.2.1 - Secure development policy A.14.2.5 - Secure development environment A.14.3.1 - Separation of development, test and production environments A.12.6.1 - Management of technical vulnerabilities A.12.2.1 - Restriction of access to information
🟣 PCI DSS v4.0.1
6.5.1 - Injection flaws prevention 6.5.7 - Cross-site scripting (XSS) prevention 6.2 - Security patches and updates 7.1 - Limit access to system components by business need-to-know
📊 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
Exploit No
Patch ✗ No
Published 2026-03-21
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
6.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-79
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