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Global phishing Cross-sector HIGH 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 27m Global vulnerability IT Infrastructure CRITICAL 1h Global vulnerability Technology and Software Development HIGH 2h Global vulnerability Enterprise IT and Government CRITICAL 2h Global ransomware Multiple Sectors / Enterprise CRITICAL 3h Global general Technology and Legal MEDIUM 3h Global ransomware Financial Services / Cryptocurrency CRITICAL 4h Global general Industrial Control Systems / Operational Technology HIGH 5h Global apt Managed Service Providers (MSPs) / IT Services HIGH 6h Global phishing Cross-sector HIGH 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 27m Global vulnerability IT Infrastructure CRITICAL 1h Global vulnerability Technology and Software Development HIGH 2h Global vulnerability Enterprise IT and Government CRITICAL 2h Global ransomware Multiple Sectors / Enterprise CRITICAL 3h Global general Technology and Legal MEDIUM 3h Global ransomware Financial Services / Cryptocurrency CRITICAL 4h Global general Industrial Control Systems / Operational Technology HIGH 5h Global apt Managed Service Providers (MSPs) / IT Services HIGH 6h Global phishing Cross-sector HIGH 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 27m Global vulnerability IT Infrastructure CRITICAL 1h Global vulnerability Technology and Software Development HIGH 2h Global vulnerability Enterprise IT and Government CRITICAL 2h Global ransomware Multiple Sectors / Enterprise CRITICAL 3h Global general Technology and Legal MEDIUM 3h Global ransomware Financial Services / Cryptocurrency CRITICAL 4h Global general Industrial Control Systems / Operational Technology HIGH 5h Global apt Managed Service Providers (MSPs) / IT Services HIGH 6h
Vulnerabilities

CVE-2021-47976

High
CWE-352 — Weakness Type
Published: May 16, 2026  ·  Modified: May 23, 2026  ·  Source: NVD
CVSS v3
8.8
🔗 NVD Official
📄 Description (English)

TextPattern CMS 4.9.0-dev contains a remote code execution vulnerability that allows authenticated attackers to upload arbitrary PHP files by exploiting the plugin upload functionality. Attackers can authenticate, retrieve a CSRF token from the plugin event page, and upload malicious PHP files to the textpattern/tmp/ directory for code execution.

🤖 AI Executive Summary

TextPattern CMS 4.9.0-dev allows authenticated attackers to execute arbitrary code by uploading malicious PHP files through the plugin upload functionality. The vulnerability exploits insufficient file validation and CSRF token handling in the plugin management interface.

📄 Description (Arabic)

تحتوي نسخة TextPattern CMS 4.9.0-dev على ثغرة في وظيفة تحميل المكونات الإضافية تسمح للمهاجمين المصرح لهم بتحميل ملفات PHP تعسفية. يمكن للمهاجمين الحصول على رمز CSRF من صفحة حدث المكون الإضافي وتحميل ملفات ضارة إلى مجلد textpattern/tmp/ لتنفيذ أكواد عشوائية.

🤖 ملخص تنفيذي (AI)

TextPattern CMS 4.9.0-dev يسمح للمهاجمين المصرح لهم بتنفيذ أكواد عشوائية عن طريق تحميل ملفات PHP ضارة من خلال وظيفة تحميل المكونات الإضافية. يستغل الثغرة التحقق غير الكافي من الملفات والتعامل مع رموز CSRF في واجهة إدارة المكونات الإضافية.

🤖 AI Intelligence Analysis Analyzed: May 20, 2026 19:24
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
government telecom banking
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.0
/ 10.0
🔧 Remediation Steps (English)
Upgrade TextPattern CMS to version 4.9.1 or later immediately. Implement strict file upload validation including file type whitelisting, disable PHP execution in upload directories via web server configuration (.htaccess or nginx rules), enforce proper CSRF token validation, and restrict plugin upload functionality to trusted administrators only.
🔧 خطوات المعالجة (العربية)
قم بترقية TextPattern CMS إلى الإصدار 4.9.1 أو أحدث فوراً. طبق التحقق الصارم من تحميل الملفات بما في ذلك قائمة بيضاء لأنواع الملفات، وعطل تنفيذ PHP في مجلدات التحميل عبر إعدادات خادم الويب، وفرض التحقق الصحيح من رموز CSRF، وقيد وظيفة تحميل المكونات الإضافية للمسؤولين الموثوقين فقط.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.12.4.1 A.14.2.1
🔵 SAMA CSF
CC-6.1 CC-6.2 CC-7.2
🟡 ISO 27001:2022
A.12.2.1 A.14.2.1 A.14.2.5
📊 CVSS Score
8.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.8
CWECWE-352
EPSS0.10%
Exploit No
Patch ✗ No
Published 2026-05-16
Source Feed nvd
🇸🇦 Saudi Risk Score
8.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-352
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