FKIE_CVE-2023-47120

Vulnerability from fkie_nvd - Published: 2023-11-10 16:15 - Updated: 2026-06-17 06:32
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
References
security-advisories@github.comhttps://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852Patch
security-advisories@github.comhttps://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0cePatch
security-advisories@github.comhttps://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0cePatch
af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3Vendor Advisory
Impacted products
Vendor Product Version
discourse discourse *
discourse discourse 3.1.0
discourse discourse 3.1.0
discourse discourse 3.1.0
discourse discourse 3.2.0
discourse discourse 3.2.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "discourse",
          "vendor": "discourse",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.1.0, \u003c 3.1.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.1.0.beta6, \u003c 3.2.0.beta3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "discourse",
          "vendor": "discourse",
          "versions": [
            {
              "lessThan": "3.1.3",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "3.2.0.beta3",
              "status": "affected",
              "version": "3.1.0.beta6",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*",
              "matchCriteriaId": "50504A87-E983-44B1-9148-91A3F5851F6A",
              "versionEndExcluding": "3.1.3",
              "versionStartIncluding": "3.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:3.1.0:beta6:*:*:beta:*:*:*",
              "matchCriteriaId": "9D797DA5-1AE5-4D49-B133-AF45D7FB0A4A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:3.1.0:beta7:*:*:beta:*:*:*",
              "matchCriteriaId": "4C868514-CFCE-4DA6-B15E-CB64CDF21609",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:3.1.0:beta8:*:*:beta:*:*:*",
              "matchCriteriaId": "755DE44D-B1C7-4434-824F-5544BE6DD1CA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:3.2.0:beta1:*:*:beta:*:*:*",
              "matchCriteriaId": "1BFF647B-6CEF-43BF-BF5E-C82B557F78E2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:3.2.0:beta2:*:*:beta:*:*:*",
              "matchCriteriaId": "10D931DE-F8F5-4A34-A30A-FDD4420ABD1A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds."
    },
    {
      "lang": "es",
      "value": "Discourse es una plataforma de c\u00f3digo abierto para el debate comunitario. En las versiones 3.1.0 a 3.1.2 de la rama \"stable\" y en las versiones 3.1.0, beta6 a 3.2.0.beta2 de las ramas \"beta\" y \"tests-passed\", la memoria de Redis se puede agotar al crear un sitio con una URL de favicon anormalmente larga y redactando m\u00faltiples publicaciones en Onebox. El problema se solucion\u00f3 en la versi\u00f3n 3.1.3 de la rama \"stable\" y en la versi\u00f3n 3.2.0.beta3 de las ramas \"beta\" y \"tests-passed\". No se conocen workarounds."
    }
  ],
  "id": "CVE-2023-47120",
  "lastModified": "2026-06-17T06:32:11.670",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-47120",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-03T18:51:47.225796Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-11-10T16:15:33.473",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "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.