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Vulnerabilities

CVE-2026-26352

Medium
Smoothwall Express versions prior to 3.1 Update 13 contain a stored cross-site scripting vulnerability in the /cgi-bin/vpnmain.cgi script due to improper sanitation of the VPN_IP parameter. Authentica
CWE-79 — Weakness Type
Published: Mar 30, 2026  ·  Modified: Apr 2, 2026  ·  Source: NVD
CVSS v3
5.4
🔗 NVD Official
📄 Description (English)

Smoothwall Express versions prior to 3.1 Update 13 contain a stored cross-site scripting vulnerability in the /cgi-bin/vpnmain.cgi script due to improper sanitation of the VPN_IP parameter. Authenticated attackers can inject arbitrary JavaScript through VPN configuration settings that executes when the affected page is viewed by other users.

🤖 AI Executive Summary

Smoothwall Express versions before 3.1 Update 13 contain a stored XSS vulnerability in the VPN configuration module that allows authenticated attackers to inject malicious JavaScript. The vulnerability affects the /cgi-bin/vpnmain.cgi script through improper sanitization of the VPN_IP parameter.

📄 Description (Arabic)

تحتوي ثغرة XSS المخزنة على معامل VPN_IP في سكريبت vpnmain.cgi الذي لم يتم تنظيفه بشكل صحيح. يمكن للمهاجمين المصرحين بالوصول إدارياً حقن كود JavaScript ضار يتم تنفيذه عند عرض الصفحة من قبل مستخدمين آخرين. قد يؤدي هذا إلى سرقة جلسات العمل أو بيانات اعتماد المسؤولين.

🤖 ملخص تنفيذي (AI)

إصدارات Smoothwall Express السابقة للإصدار 3.1 التحديث 13 تحتوي على ثغرة XSS مخزنة في وحدة تكوين VPN تسمح للمهاجمين المصرحين بحقن JavaScript ضار. تؤثر الثغرة على سكريبت /cgi-bin/vpnmain.cgi من خلال عدم تنظيف معامل VPN_IP بشكل صحيح.

🤖 AI Intelligence Analysis Analyzed: May 26, 2026 14:32
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: medium
🏢 Affected Saudi Sectors
telecom government energy
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
5.0
/ 10.0
🔧 Remediation Steps (English)
Upgrade Smoothwall Express to version 3.1 Update 13 or later immediately. Implement input validation and output encoding for all VPN configuration parameters. Apply web application firewall rules to detect and block XSS payloads in VPN settings. Restrict administrative access to VPN configuration interfaces.
🔧 خطوات المعالجة (العربية)
قم بترقية Smoothwall Express إلى الإصدار 3.1 التحديث 13 أو أحدث فوراً. طبق التحقق من صحة المدخلات وترميز المخرجات لجميع معاملات تكوين VPN. طبق قواعد جدار حماية تطبيقات الويب للكشف عن حمولات XSS وحجبها في إعدادات VPN. قيد الوصول الإداري إلى واجهات تكوين VPN.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A1.1 A1.2 A2.1
🔵 SAMA CSF
ID.BE-1 PR.AC-1 PR.DS-1
🟡 ISO 27001:2022
A.6.1.1 A.9.1.1 A.14.2.1
📊 CVSS Score
5.4
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionR — Required
ScopeC — Changed
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityN — None / Network
📋 Quick Facts
Severity Medium
CVSS Score5.4
CWECWE-79
EPSS0.03%
Exploit No
Patch ✗ No
Published 2026-03-30
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
5.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-79
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