πŸ›‘οΈ CVE-2026-25885
🟠 CVSS 7.5 β€” High ⚠️ Exploit Public CWE-285 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE CWE-285
Public Exploit ⚠️ Yes
Source NVD
Published 2026-02-09
Updated 2026-06-02
Modified 2026-02-20

Affected Packages

Software From version Fixed in
polarlearn β€” β€”

Similar Threats

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