CVE-2026-29072

Estado: AnalizadaAlta (8.2)—

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, users who do not belong to the allowed policy creation groups can create functional policy acceptance widgets in posts under the right conditions. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, disable the discourse-policy plugin by disabling the `policy_enabled` site setting.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 8.2

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.30%
Percentil entre todas las CVEs puntuadas: 21
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access75 %
Impacto principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access70 %
Impacto secundarioT1565.002 Transmitted Data Manipulationimpact60 %

AV:N/PR:N sin UI:R indica explotación web remota (T1190). CWE-862 (falta de autorización) permite crear widgets de política sin permisos, elevando derechos de usuario (T1078) y manipulando contenido (T1565.002).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Application Developer Guidance Active Directory Configuration Vulnerability Scanning User Training User Account Management

Tecnologías afectadas (1)

Discourse — Discourse

CWE

CWE-862

Referencias

https://github.com/discourse/discourse/security/advisories/GHSA-7ph8-vprq-4jrp

JSON original (NVD)

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      "value": "Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, users who do not belong to the allowed policy creation groups can create functional policy acceptance widgets in posts under the right conditions. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, disable the discourse-policy plugin by disabling the `policy_enabled` site setting."
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      "value": "Discourse es una plataforma de discusión de código abierto. Anteriormente a las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2, los usuarios que no pertenecen a los grupos permitidos de creación de políticas pueden crear widgets funcionales de aceptación de políticas en publicaciones bajo las condiciones adecuadas. Las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 contienen un parche. Como solución alternativa, deshabilite el plugin discourse-policy deshabilitando la configuración del sitio 'policy_enabled'."
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