CVE-2026-25885

HIGH

7.5

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 CVE

Score CVSS v3.17.5

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie2/9/2026

Derniere modification2/20/2026

Sourcenvd

Observations honeypot0

Produits affectes

polarlearn:polarlearn

Faiblesses (CWE)

CWE-285CWE-306

References

https://github.com/polarnl/PolarLearn/commit/3ba588fda0d3f8e238483a20772719f27e52e79f(security-advisories@github.com)

https://github.com/polarnl/PolarLearn/security/advisories/GHSA-gvjm-5pw7-6c8c(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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