GSD-2021-43847

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
HumHub is an open-source social network kit written in PHP. Prior to HumHub version 1.10.3 or 1.9.3, it could be possible for registered users to become unauthorized members of private Spaces. Versions 1.10.3 and 1.9.3 contain a patch for this issue.
Aliases
Aliases
CVE-2021-43847
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-43847",
    "description": "HumHub is an open-source social network kit written in PHP. Prior to HumHub version 1.10.3 or 1.9.3, it could be possible for registered users to become unauthorized members of private Spaces. Versions 1.10.3 and 1.9.3 contain a patch for this issue.",
    "id": "GSD-2021-43847"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-43847"
      ],
      "details": "HumHub is an open-source social network kit written in PHP. Prior to HumHub version 1.10.3 or 1.9.3, it could be possible for registered users to become unauthorized members of private Spaces. Versions 1.10.3 and 1.9.3 contain a patch for this issue.",
      "id": "GSD-2021-43847",
      "modified": "2023-12-13T01:23:26.272266Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
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        "ID": "CVE-2021-43847",
        "STATE": "PUBLIC",
        "TITLE": "Authorization Bypass in Space Invite in HumHub"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "humhub",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003e= 1.10.0, \u003c 1.10.3"
                        },
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                          "version_value": "\u003c 1.9.3"
                        }
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          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        }
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      "problemtype": {
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            "description": [
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                "lang": "eng",
                "value": "CWE-285: Improper Authorization"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/humhub/humhub/security/advisories/GHSA-f5hc-5wfr-7v74",
            "refsource": "CONFIRM",
            "url": "https://github.com/humhub/humhub/security/advisories/GHSA-f5hc-5wfr-7v74"
          },
          {
            "name": "https://github.com/humhub/humhub/pull/5473",
            "refsource": "MISC",
            "url": "https://github.com/humhub/humhub/pull/5473"
          },
          {
            "name": "https://github.com/humhub/humhub/releases/tag/v1.10.3",
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            "url": "https://github.com/humhub/humhub/releases/tag/v1.10.3"
          },
          {
            "name": "https://github.com/humhub/humhub/releases/tag/v1.9.3",
            "refsource": "MISC",
            "url": "https://github.com/humhub/humhub/releases/tag/v1.9.3"
          },
          {
            "name": "https://huntr.dev/bounties/943dad83-f0ed-4c74-ba81-7dfce7ca0ef2/",
            "refsource": "MISC",
            "url": "https://huntr.dev/bounties/943dad83-f0ed-4c74-ba81-7dfce7ca0ef2/"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-f5hc-5wfr-7v74",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
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        "nodes": [
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            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:humhub:humhub:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.10.3",
                "versionStartIncluding": "1.10.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:humhub:humhub:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.9.3",
                "vulnerable": true
              }
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          }
        ]
      },
      "cve": {
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        "description": {
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            }
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          "reference_data": [
            {
              "name": "https://huntr.dev/bounties/943dad83-f0ed-4c74-ba81-7dfce7ca0ef2/",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
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                "Third Party Advisory"
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            },
            {
              "name": "https://github.com/humhub/humhub/releases/tag/v1.10.3",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/humhub/humhub/releases/tag/v1.10.3"
            },
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              "url": "https://github.com/humhub/humhub/security/advisories/GHSA-f5hc-5wfr-7v74"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 4.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
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          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-08-09T13:27Z",
      "publishedDate": "2021-12-20T22:15Z"
    }
  }
}


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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.



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