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Vulnerabilities

CVE-2026-25885

High ⚡ Exploit Available
PolarLearn is a free and open-source learning program. In 0-PRERELEASE-16 and earlier, the group chat WebSocket at wss://polarlearn.nl/api/v1/ws can be used without logging in. An unauthenticated clie
CWE-285 — Weakness Type
Published: Feb 9, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
7.5
🔗 NVD Official
📄 Description (English)

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-16 and earlier, the group chat WebSocket at wss://polarlearn.nl/api/v1/ws can be used without logging in. An unauthenticated client can subscribe to any group chat by providing a group UUID, and can also send messages to any group. The server accepts the message and stores it in the group’s chatContent, so this is not just a visual spam issue.

🤖 AI Executive Summary

PolarLearn versions 0-PRERELEASE-16 and earlier contain an authentication bypass vulnerability in the group chat WebSocket endpoint, allowing unauthenticated users to subscribe to and send messages to any group chat. This vulnerability enables unauthorized message injection and potential data manipulation in collaborative learning environments.

📄 Description (Arabic)

ثغرة تجاوز المصادقة في نقطة نهاية WebSocket للدردشة الجماعية في PolarLearn تسمح للعملاء غير المصرح لهم بالاشتراك في أي دردشة جماعية وإرسال الرسائل باستخدام معرف UUID للمجموعة. يقبل الخادم الرسائل ويخزنها في محتوى الدردشة الجماعية، مما يؤدي إلى تلوث البيانات والتلاعب بسجلات الدردشة.

🤖 ملخص تنفيذي (AI)

إصدارات PolarLearn 0-PRERELEASE-16 والإصدارات الأقدم تحتوي على ثغرة تجاوز المصادقة في نقطة نهاية WebSocket للدردشة الجماعية، مما يسمح للمستخدمين غير المصرح لهم بالاشتراك في أي دردشة جماعية وإرسال الرسائل. تمكن هذه الثغرة من حقن الرسائل غير المصرح بها والتلاعب المحتمل بالبيانات في بيئات التعلم التعاوني.

🤖 AI Intelligence Analysis Analyzed: May 4, 2026 15:02
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: medium
🏢 Affected Saudi Sectors
education government healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Upgrade PolarLearn to version 0-PRERELEASE-17 or later immediately. Implement mandatory WebSocket authentication checks before allowing any group chat subscription or message operations. Validate user credentials and group membership permissions on every WebSocket connection and message transmission. Apply network-level access controls to restrict WebSocket endpoints to authenticated users only.
🔧 خطوات المعالجة (العربية)
قم بترقية PolarLearn إلى الإصدار 0-PRERELEASE-17 أو أحدث فوراً. قم بتنفيذ فحوصات مصادقة WebSocket إلزامية قبل السماح بأي عملية اشتراك أو إرسال رسائل في الدردشة الجماعية. تحقق من بيانات اعتماد المستخدم وأذونات عضوية المجموعة في كل اتصال WebSocket وإرسال رسالة. طبق عناصر تحكم في الوصول على مستوى الشبكة لتقييد نقاط نهاية WebSocket للمستخدمين المصرح لهم فقط.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.1 5.1.2
🔵 SAMA CSF
AC-2 AC-3
🟡 ISO 27001:2022
A.9.2.1 A.9.4.3
📦 Affected Products / CPE 1 entries
polarlearn:polarlearn:-
📊 CVSS Score
7.5
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityH — High
AvailabilityN — None / Network
📋 Quick Facts
Severity High
CVSS Score7.5
CWECWE-285
EPSS0.04%
Exploit ✓ Yes
Patch ✓ Yes
Published 2026-02-09
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
exploit-available patch-available CWE-285
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