FKIE_CVE-2023-43657

Vulnerability from fkie_nvd - Published: 2023-09-28 19:15 - Updated: 2024-11-21 08:24
Severity
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
discourse-encrypt is a plugin that provides a secure communication channel through Discourse. Improper escaping of encrypted topic titles could lead to a cross site scripting (XSS) issue when a site has content security policy (CSP) headers disabled. Having CSP disabled is a non-default configuration, and having it disabled with discourse-encrypt installed will result in a warning in the Discourse admin dashboard. This has been fixed in commit `9c75810af9` which is included in the latest version of the discourse-encrypt plugin. Users are advised to upgrade. Users unable to upgrade should ensure that CSP headers are enabled and properly configured.
References
security-advisories@github.comhttps://developer.mozilla.org/en-US/docs/Web/HTTP/CSPProduct
security-advisories@github.comhttps://github.com/discourse/discourse-encrypt/commit/9c75810af9a474d7edaec67dea66f852c0ba1f4ePatch
security-advisories@github.comhttps://github.com/discourse/discourse-encrypt/security/advisories/GHSA-5fh6-wp7p-xx7vVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://developer.mozilla.org/en-US/docs/Web/HTTP/CSPProduct
af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse-encrypt/commit/9c75810af9a474d7edaec67dea66f852c0ba1f4ePatch
af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse-encrypt/security/advisories/GHSA-5fh6-wp7p-xx7vVendor Advisory
Impacted products
Vendor Product Version
discourse discourse-encrypt *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:discourse:discourse-encrypt:*:*:*:*:*:discourse:*:*",
              "matchCriteriaId": "F107A6F2-A831-40B8-9052-CE35E247D142",
              "versionEndExcluding": "2023-09-28",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "discourse-encrypt is a plugin that provides a secure communication channel through Discourse. Improper escaping of encrypted topic titles could lead to a cross site scripting (XSS) issue when a site has content security policy (CSP) headers disabled. Having CSP disabled is a non-default configuration, and having it disabled with discourse-encrypt installed will result in a warning in the Discourse admin dashboard. This has been fixed in commit `9c75810af9` which is included in the latest version of the discourse-encrypt plugin. Users are advised to upgrade. Users unable to upgrade should ensure that CSP headers are enabled and properly configured."
    },
    {
      "lang": "es",
      "value": "discourse-encrypt es un complemento que proporciona un canal de comunicaci\u00f3n seguro a trav\u00e9s de Discourse. El escape inadecuado de los topic titles cifrados podr\u00eda provocar un problema de Cross Site Scripting (XSS) cuando un sitio tiene los encabezados de la pol\u00edtica de seguridad de contenido (CSP) deshabilitados. Tener CSP deshabilitado es una configuraci\u00f3n no predeterminada, y tenerlo deshabilitado con el discourse-encrypt instalado generar\u00e1 una advertencia en el panel de administraci\u00f3n de Discourse. Esto se solucion\u00f3 en el commit `9c75810af9` que se incluye en la \u00faltima versi\u00f3n del complemento discourse-encrypt. Se recomienda a los usuarios que actualicen. Los usuarios que no puedan actualizar deben asegurarse de que los encabezados CSP est\u00e9n habilitados y configurados correctamente."
    }
  ],
  "id": "CVE-2023-43657",
  "lastModified": "2024-11-21T08:24:33.580",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2023-09-28T19:15:10.547",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product"
      ],
      "url": "https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/discourse/discourse-encrypt/commit/9c75810af9a474d7edaec67dea66f852c0ba1f4e"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/discourse/discourse-encrypt/security/advisories/GHSA-5fh6-wp7p-xx7v"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/discourse/discourse-encrypt/commit/9c75810af9a474d7edaec67dea66f852c0ba1f4e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/discourse/discourse-encrypt/security/advisories/GHSA-5fh6-wp7p-xx7v"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.