PT-2026-22193 · Discourse · Discourse

Davidtaylorhq · Publicado 2026-02-26 · Atualizado 2026-03-03 · CVE-2026-27153

Positive Technologies (AI Summary)

CVSS v3.1

2.7

Baixa

Vetor base

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

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2025.12.2 Discourse versions prior to 2026.1.1 Discourse versions prior to 2026.2.0

Description Discourse is an open source discussion platform. Prior to specific versions, moderators could export user Chat Direct Messages (DMs) via the CSV export endpoint. This was possible due to an overly permissive allowlist within the can export entity? method. The method permitted moderators to export any entity not explicitly blocked, rather than restricting exports to an explicit allowlist of permitted entities.

Recommendations Update Discourse to version 2025.12.2 or later. Update Discourse to version 2026.1.1 or later. Update Discourse to version 2026.2.0 or later.

Exploit

Correção

Incorrect Authorization

Enumeração de Fraquezas

CWE-863

Identificadores relacionados

BIT-DISCOURSE-2026-27153

CVE-2026-27153

GHSA-5CP2-JQ8M-33MF

Produtos afetados

Discourse

Referências · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27153.json · Exploit
• https://github.com/discourse/discourse/security/advisories/GHSA-5cp2-jq8m-33mf · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-27153 · Nota de Segurança
• https://osv.dev/vulnerability/BIT-discourse-2026-27153 · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2026-27153 · Aviso do Fabricante
• https://twitter.com/CVEnew/status/2027466655669113137 · Publicação no Twitter
• https://twitter.com/VulmonFeeds/status/2027246889825956054 · Publicação no Twitter