CVE-2023-22488

{"id": "CVE-2023-22488", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 2.3}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.8}]}, "published": "2023-01-12T20:15:09.347", "references": [{"url": "https://github.com/flarum/framework/commit/d0a2b95dca57d3dae9a0d77b610b1cb1d0b1766a", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/flarum/framework/security/advisories/GHSA-8gcg-vwmw-rxj4", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/flarum/framework/commit/d0a2b95dca57d3dae9a0d77b610b1cb1d0b1766a", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/flarum/framework/security/advisories/GHSA-8gcg-vwmw-rxj4", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "Flarum is a forum software for building communities. Using the notifications feature, one can read restricted/private content and bypass access checks that would be in place for such content. The notification-sending component does not check that the subject of the notification can be seen by the receiver, and proceeds to send notifications through their different channels. The alerts do not leak data despite this as they are listed based on a visibility check, however, emails are still sent out. This means that, for extensions which restrict access to posts, any actor can bypass the restriction by subscribing to the discussion if the Subscriptions extension is enabled. The attack allows the leaking of some posts in the forum database, including posts awaiting approval, posts in tags the user has no access to if they could subscribe to a discussion before it becomes private, and posts restricted by third-party extensions. All Flarum versions prior to v1.6.3 are affected. The vulnerability has been fixed and published as flarum/core v1.6.3. All communities running Flarum should upgrade as soon as possible to v1.6.3. As a workaround, disable the Flarum Subscriptions extension or disable email notifications altogether. There are no other supported workarounds for this issue for Flarum versions below 1.6.3."}, {"lang": "es", "value": "Flarum es un software de foro para construir comunidades. Al utilizar la funci\u00f3n de notificaciones, se puede leer contenido restringido/privado y evitar los controles de acceso que se implementar\u00edan para dicho contenido. El componente de env\u00edo de notificaciones no comprueba que el asunto de la notificaci\u00f3n pueda ser visto por el receptor, y procede a enviar notificaciones a trav\u00e9s de sus diferentes canales. A pesar de esto, las alertas no filtran datos, ya que se enumeran seg\u00fan una verificaci\u00f3n de visibilidad; sin embargo, a\u00fan se env\u00edan correos electr\u00f3nicos. Esto significa que, para las extensiones que restringen el acceso a las publicaciones, cualquier actor puede evitar la restricci\u00f3n suscribi\u00e9ndose a la discusi\u00f3n si la extensi\u00f3n Suscripciones est\u00e1 habilitada. El ataque permite la filtraci\u00f3n de algunas publicaciones en la base de datos del foro, incluidas publicaciones en espera de aprobaci\u00f3n, publicaciones en etiquetas a las que el usuario no tiene acceso si pudiera suscribirse a una discusi\u00f3n antes de que se vuelva privada y publicaciones restringidas por extensiones de terceros. Todas las versiones de Flarum anteriores a la v1.6.3 se ven afectadas. La vulnerabilidad ha sido reparada y publicada como flarum/core v1.6.3. Todas las comunidades que ejecutan Flarum deben actualizar lo antes posible a la versi\u00f3n 1.6.3. Como workaround, desactive la extensi\u00f3n Flarum Subscriptions o desactive las notificaciones por correo electr\u00f3nico por completo. No existen otros workarounds para este problema para las versiones de Flarum inferiores a 1.6.3."}], "lastModified": "2024-11-21T07:44:54.543", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:flarum:flarum:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1CCA0BF4-79A3-4528-821A-DF5DB8692C99", "versionEndExcluding": "1.6.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}