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CVE-2025-46813

Estado: AnalizadaAlta (7.5)—

Discourse is an open-source community platform. A data leak vulnerability affects sites deployed between commits 10df7fdee060d44accdee7679d66d778d1136510 and 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b. On login-required sites, the leak meant that some content on the site's homepage could be visible to unauthenticated users. Only login-required sites that got deployed during this timeframe are affected, roughly between April 30 2025 noon EDT and May 2 2025, noon EDT. Sites on the stable branch are unaffected.

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Private content on an instance's homepage could be visible to unauthenticated users on login-required sites. Versions of 3.5.0.beta4 after commit 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b are not vulnerable to the issue. No workarounds are available. Sites must upgrade to a non-vulnerable version of Discourse.

CVSS

Probabilidad de explotación (EPSS)

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.

AV:N, PR:N, UI:N indica exposición remota sin autenticación (T1190). CWE-200 y descripción confirman lectura no autorizada de contenido privado (T1005) en homepage de sitios login-required.

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

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Discourse — Discourse

CWE

Referencias

JSON original (NVD)

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      "value": "Discourse is an open-source community platform. A data leak vulnerability affects sites deployed between commits 10df7fdee060d44accdee7679d66d778d1136510 and 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b. On login-required sites, the leak meant that some content on the site's homepage could be visible to unauthenticated users. Only login-required sites that got deployed during this timeframe are affected, roughly between April 30 2025 noon EDT and May 2 2025, noon EDT. Sites on the stable branch are unaffected. Private content on an instance's homepage could be visible to unauthenticated users on login-required sites. Versions of 3.5.0.beta4 after commit 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b are not vulnerable to the issue. No workarounds are available. Sites must upgrade to a non-vulnerable version of Discourse."
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      "value": "Discourse es una plataforma comunitaria de código abierto. Una vulnerabilidad de fuga de datos afecta a los sitios implementados entre los commits 10df7fdee060d44accdee7679d66d778d1136510 y 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b. En los sitios que requieren inicio de sesión, la fuga de datos provocó que parte del contenido de la página principal del sitio fuera visible para usuarios no autenticados. Solo los sitios que requieren inicio de sesión implementados durante este periodo se vieron afectados, aproximadamente entre el 30 de abril de 2025 al mediodía EDT y el 2 de mayo de 2025 al mediodía EDT. Los sitios de la rama estable no se vieron afectados. El contenido privado de la página principal de una instancia podría ser visible para usuarios no autenticados en sitios que requieren inicio de sesión. Las versiones de 3.5.0.beta4 posteriores a la confirmación 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b no son vulnerables al problema. No hay workarounds disponibles. Los sitios deben actualizar a una versión de Discourse no vulnerable."
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  "lastModified": "2026-06-17T09:26:58.560",
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