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CVE-2026-27153

Discourse doesn't prevent moderators from exporting user Chat DMs

CVSS 1.3 LOWEPSS 0.2%CWE-863
Vexday Risk Score
8Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 1.3EPSS 0.2%KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
26 fev 2026Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
Produtos afetados
discourse · discourse

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