📧 info@ciso.sa | 📱 +966550939344 | Riyadh, Kingdom of Saudi Arabia
🔧 Scheduled Maintenance — Saturday 2:00-4:00 AM AST. Some features may be temporarily unavailable.    ●   
💎
Pro Plan 50% Off Unlock all AI features, unlimited reports, and priority support. Upgrade
Search Center
ESC to close
Global vulnerability Higher Education CRITICAL 3h Global data_breach Government HIGH 4h Global supply_chain Software Development and Open Source Communities CRITICAL 4h Global malware Software Development CRITICAL 4h Global phishing Multiple Sectors HIGH 5h Global vulnerability Web Applications CRITICAL 5h Global apt Critical Infrastructure CRITICAL 5h Global ransomware Multiple sectors CRITICAL 6h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 7h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 7h Global vulnerability Higher Education CRITICAL 3h Global data_breach Government HIGH 4h Global supply_chain Software Development and Open Source Communities CRITICAL 4h Global malware Software Development CRITICAL 4h Global phishing Multiple Sectors HIGH 5h Global vulnerability Web Applications CRITICAL 5h Global apt Critical Infrastructure CRITICAL 5h Global ransomware Multiple sectors CRITICAL 6h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 7h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 7h Global vulnerability Higher Education CRITICAL 3h Global data_breach Government HIGH 4h Global supply_chain Software Development and Open Source Communities CRITICAL 4h Global malware Software Development CRITICAL 4h Global phishing Multiple Sectors HIGH 5h Global vulnerability Web Applications CRITICAL 5h Global apt Critical Infrastructure CRITICAL 5h Global ransomware Multiple sectors CRITICAL 6h Global supply_chain Software Development, IT Infrastructure, Technology CRITICAL 7h Global vulnerability,data_breach,general Technology, Industrial Control Systems, Telecommunications HIGH 7h
Vulnerabilities

CVE-2018-25309

High ⚡ Exploit Available
CWE-79 — Weakness Type
Published: Apr 29, 2026  ·  Modified: May 2, 2026  ·  Source: NVD
CVSS v3
7.2
🔗 NVD Official
📄 Description (English)

MyBB Recent threads 17.0 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts by creating threads with crafted subject lines. Attackers can create threads with script tags in the subject parameter to execute arbitrary JavaScript in the browsers of all users viewing the index page.

🤖 AI Executive Summary

MyBB Recent Threads 17.0 contains a persistent XSS vulnerability (CVE-2018-25309) allowing attackers to inject malicious scripts via crafted thread subject lines. The vulnerability affects all users viewing the index page and has publicly available exploits. This poses significant risk to organizations using MyBB for community forums, particularly those in Saudi Arabia managing internal or customer-facing discussion platforms.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 7, 2026 22:39
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations most at risk include: (1) Government agencies and municipalities using MyBB for citizen engagement portals or internal collaboration forums; (2) Banking and financial institutions using MyBB for customer support communities; (3) Telecommunications companies (STC, Mobily, Zain) operating customer discussion forums; (4) Healthcare providers managing patient education forums; (5) Educational institutions using MyBB for student/faculty interaction. The persistent nature of this XSS allows attackers to compromise all forum visitors, potentially leading to credential theft, malware distribution, or defacement affecting organizational reputation and user trust.
🏢 Affected Saudi Sectors
Government and Public Administration Banking and Financial Services Telecommunications Healthcare Education Retail and E-commerce Media and Publishing
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Disable the Recent Threads plugin immediately if not critical to operations
2. Restrict forum access to authenticated users only to limit exposure
3. Implement Web Application Firewall (WAF) rules to block script tags in POST requests to thread creation endpoints
4. Review forum logs for suspicious thread creation activity with script tags in subject lines

Patching Guidance:
1. No official patch available for version 17.0 - upgrade to MyBB 1.8.x or later if available
2. If upgrade not feasible, apply input validation: sanitize all thread subject inputs using htmlspecialchars() or equivalent
3. Implement output encoding on index page display using Content Security Policy (CSP) headers

Compensating Controls:
1. Deploy WAF rules: Block requests containing <script>, javascript:, onerror=, onload= in subject parameter
2. Enable HTML filtering in MyBB admin panel to strip HTML/script tags from user input
3. Implement strict CSP headers: Content-Security-Policy: default-src 'self'; script-src 'self'
4. Enable forum moderation queue for all new threads pending admin review

Detection Rules:
1. Monitor for POST requests to thread creation endpoints containing script tags or event handlers
2. Alert on database queries inserting <script> or javascript: into thread subject fields
3. Log and review all thread subjects containing HTML special characters or encoded script patterns
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تعطيل مكون Recent Threads فوراً إذا لم يكن حرجاً للعمليات
2. تقييد وصول المنتدى للمستخدمين المصرح لهم فقط لتقليل التعرض
3. تطبيق قواعد جدار الحماية لتطبيقات الويب (WAF) لحظر علامات البرامج النصية في طلبات POST لنقاط نهاية إنشاء الموضوعات
4. مراجعة سجلات المنتدى للنشاط المريب في إنشاء الموضوعات التي تحتوي على علامات برامج نصية

إرشادات التصحيح:
1. لا يوجد تصحيح رسمي متاح للإصدار 17.0 - قم بالترقية إلى MyBB 1.8.x أو إصدار أحدث إن أمكن
2. إذا لم يكن الترقية ممكنة، طبق التحقق من الإدخال: تطهير جميع مدخلات موضوع الخيط باستخدام htmlspecialchars() أو ما يعادله
3. تطبيق ترميز الإخراج على عرض صفحة الفهرس باستخدام رؤوس سياسة أمان المحتوى (CSP)

الضوابط التعويضية:
1. نشر قواعد WAF: حظر الطلبات التي تحتوي على <script>، javascript:، onerror=، onload= في معامل الموضوع
2. تفعيل تصفية HTML في لوحة إدارة MyBB لإزالة علامات HTML/البرامج النصية من مدخلات المستخدم
3. تطبيق رؤوس CSP صارمة: Content-Security-Policy: default-src 'self'; script-src 'self'
4. تفعيل قائمة انتظار الاعتدال للمنتدى لجميع الموضوعات الجديدة في انتظار مراجعة المسؤول

قواعد الكشف:
1. مراقبة طلبات POST لنقاط نهاية إنشاء الموضوعات التي تحتوي على علامات برامج نصية أو معالجات أحداث
2. التنبيه على استعلامات قاعدة البيانات التي تدرج <script> أو javascript: في حقول موضوع الخيط
3. تسجيل ومراجعة جميع موضوعات الخيط التي تحتوي على أحرف خاصة HTML أو أنماط برامج نصية مشفرة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.14.2.1 - Secure development policy (input validation requirements) A.14.2.5 - Secure development environment A.12.6.1 - Management of technical vulnerabilities A.12.2.1 - Monitoring of information systems
🔵 SAMA CSF
ID.GV-1 - Organizational processes to manage cybersecurity risk PR.DS-1 - Data security management PR.IP-1 - Security policy and processes DE.CM-1 - The network is monitored to detect potential cybersecurity events
🟡 ISO 27001:2022
A.14.2.1 - Secure development policy A.14.2.5 - Secure development environment A.12.6.1 - Management of technical vulnerabilities A.12.2.1 - Monitoring of information systems
🟣 PCI DSS v4.0.1
6.5.7 - Cross-site scripting (XSS) 6.2 - Ensure security patches are installed 11.2 - Run automated vulnerability scans
📦 Affected Products / CPE 1 entries
dragonexpert:recent_threads_on_index:17.0
📊 CVSS Score
7.2
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeC — Changed
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityN — None / Network
📋 Quick Facts
Severity High
CVSS Score7.2
CWECWE-79
EPSS0.03%
Exploit ✓ Yes
Patch ✗ No
Published 2026-04-29
Source Feed nvd
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
exploit-available CWE-79
Share this CVE

💬 Comments

0
Loading comments
📣 Found this valuable?
Share it with your cybersecurity network
in LinkedIn 𝕏 X / Twitter 💬 WhatsApp ✈ Telegram
🍪 Privacy Preferences
CISO Consulting — Compliant with Saudi Personal Data Protection Law (PDPL)
We use cookies and similar technologies to provide the best experience on our platform. You can choose which types you accept.
🔒
Essential Always On
Required for the website to function properly. Cannot be disabled.
📋 Sessions, CSRF tokens, authentication, language preferences
📊
Analytics
Help us understand how visitors use the site and improve performance.
📋 Page views, session duration, traffic sources, performance metrics
⚙️
Functional
Enable enhanced features like content personalization and preferences.
📋 Dark/light theme, font size, custom dashboards, saved filters
📣
Marketing
Used to deliver content and ads relevant to your interests.
📋 Campaign tracking, retargeting, social media analytics
Privacy Policy →
CISO AI Assistant
Ask anything · Documents · Support
🔐

Introduce Yourself

Enter your details to access the full assistant

Your info is private and never shared
💬
CyberAssist
Online · responds in seconds
5 / 5
🔐 Verify Your Identity

Enter your email to receive a verification code before submitting a support request.

Enter to send · / for commands 0 / 2000
CISO AI · Powered by Anthropic Claude
✦ Quick Survey Help Us Improve CISO Consulting Your feedback shapes the future of our platform — takes less than 2 minutes.
⚠ Please answer this question to continue

How would you rate your overall experience with our platform?

Rate from 1 (poor) to 5 (excellent)

🎉
Thank you!
Your response has been recorded.