CVE-2026-27153

LOW

2.7

Description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in `can_export_entity?`. The method allowed moderators to export any entity not explicitly blocked instead of restricting to an explicit allowlist. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

Details CVE

Score CVSS v3.12.7

SeveriteLOW

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisHIGH

Interaction utilisateurNONE

Publie2/26/2026

Derniere modification3/2/2026

Sourcenvd

Observations honeypot0

Produits affectes

discourse:discourse

Faiblesses (CWE)

CWE-863

References

https://github.com/discourse/discourse/security/advisories/GHSA-5cp2-jq8m-33mf(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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