Description

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.

INFO

Published Date :

2026-02-09T21:15:33.419Z

Last Modified :

2026-02-10T15:58:03.240Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-25885 vulnerability.

Vendors Products
Polarlearn
  • Polarlearn
Polarnl
  • Polarlearn
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-25885.

URL Resource
https://github.com/polarnl/PolarLearn/commit/3ba588fda0d3f8e238483a20772719f27e52e79f cve-icon cve-icon
https://github.com/polarnl/PolarLearn/security/advisories/GHSA-gvjm-5pw7-6c8c cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact