GSD-2021-43792

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
Discourse is an open source discussion platform. In affected versions a vulnerability affects users of tag groups who use the "Tags are visible only to the following groups" feature. A tag group may only allow a certain group (e.g. staff) to view certain tags. Users who were tracking or watching the tags via /preferences/tags, then have their staff status revoked will still see notifications related to the tag, but will not see the tag on each topic. This issue has been patched in stable version 2.7.11. Users are advised to upgrade as soon as possible.
Aliases
Aliases
CVE-2021-43792
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{
  "GSD": {
    "alias": "CVE-2021-43792",
    "description": "Discourse is an open source discussion platform. In affected versions a vulnerability affects users of tag groups who use the \"Tags are visible only to the following groups\" feature. A tag group may only allow a certain group (e.g. staff) to view certain tags. Users who were tracking or watching the tags via /preferences/tags, then have their staff status revoked will still see notifications related to the tag, but will not see the tag on each topic. This issue has been patched in stable version 2.7.11. Users are advised to upgrade as soon as possible.",
    "id": "GSD-2021-43792"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-43792"
      ],
      "details": "Discourse is an open source discussion platform. In affected versions a vulnerability affects users of tag groups who use the \"Tags are visible only to the following groups\" feature. A tag group may only allow a certain group (e.g. staff) to view certain tags. Users who were tracking or watching the tags via /preferences/tags, then have their staff status revoked will still see notifications related to the tag, but will not see the tag on each topic. This issue has been patched in stable version 2.7.11. Users are advised to upgrade as soon as possible.",
      "id": "GSD-2021-43792",
      "modified": "2023-12-13T01:23:26.609300Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
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        "ID": "CVE-2021-43792",
        "STATE": "PUBLIC",
        "TITLE": "Notifications leak in Discourse"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "discourse",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "stable \u003c 2.7.11"
                        },
                        {
                          "version_value": "beta \u003c 2.8.0.beta9"
                        },
                        {
                          "version_value": "tests-passed \u003c 2.8.0.beta9"
                        }
                      ]
                    }
                  }
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              "vendor_name": "discourse"
            }
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            "value": "Discourse is an open source discussion platform. In affected versions a vulnerability affects users of tag groups who use the \"Tags are visible only to the following groups\" feature. A tag group may only allow a certain group (e.g. staff) to view certain tags. Users who were tracking or watching the tags via /preferences/tags, then have their staff status revoked will still see notifications related to the tag, but will not see the tag on each topic. This issue has been patched in stable version 2.7.11. Users are advised to upgrade as soon as possible."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
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            "description": [
              {
                "lang": "eng",
                "value": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"
              }
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/discourse/discourse/security/advisories/GHSA-pq2x-vq37-8522",
            "refsource": "CONFIRM",
            "url": "https://github.com/discourse/discourse/security/advisories/GHSA-pq2x-vq37-8522"
          },
          {
            "name": "https://github.com/discourse/discourse/commit/cdaf7f4bb3ec268238e4c29a14bb73fad56574b4",
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            "url": "https://github.com/discourse/discourse/commit/cdaf7f4bb3ec268238e4c29a14bb73fad56574b4"
          },
          {
            "name": "https://meta.discourse.org/t/non-forum-staff-getting-notifications-for-staff-only-tags/184895",
            "refsource": "MISC",
            "url": "https://meta.discourse.org/t/non-forum-staff-getting-notifications-for-staff-only-tags/184895"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-pq2x-vq37-8522",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:discourse:discourse:2.8.0:beta1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
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              },
              {
                "cpe23Uri": "cpe:2.3:a:discourse:discourse:2.8.0:beta6:*:*:*:*:*:*",
                "cpe_name": [],
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              {
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          "ID": "CVE-2021-43792"
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        "description": {
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              "lang": "en",
              "value": "Discourse is an open source discussion platform. In affected versions a vulnerability affects users of tag groups who use the \"Tags are visible only to the following groups\" feature. A tag group may only allow a certain group (e.g. staff) to view certain tags. Users who were tracking or watching the tags via /preferences/tags, then have their staff status revoked will still see notifications related to the tag, but will not see the tag on each topic. This issue has been patched in stable version 2.7.11. Users are advised to upgrade as soon as possible."
            }
          ]
        },
        "problemtype": {
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              "description": [
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              "name": "https://github.com/discourse/discourse/commit/cdaf7f4bb3ec268238e4c29a14bb73fad56574b4",
              "refsource": "MISC",
              "tags": [
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              "url": "https://github.com/discourse/discourse/commit/cdaf7f4bb3ec268238e4c29a14bb73fad56574b4"
            },
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              ],
              "url": "https://github.com/discourse/discourse/security/advisories/GHSA-pq2x-vq37-8522"
            },
            {
              "name": "https://meta.discourse.org/t/non-forum-staff-getting-notifications-for-staff-only-tags/184895",
              "refsource": "MISC",
              "tags": [
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              ],
              "url": "https://meta.discourse.org/t/non-forum-staff-getting-notifications-for-staff-only-tags/184895"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-07-25T10:36Z",
      "publishedDate": "2021-12-01T20:15Z"
    }
  }
}


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  • 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.