GSD-2021-3866

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip more than and including 44f935695d452cc3fb16845a0c6af710438b153d and prior to 3eb2791c3e9695f7d37ffe84e0c2184fae665cb6.
Aliases
Aliases
CVE-2021-3866
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-3866",
    "description": "Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip prior to main.",
    "id": "GSD-2021-3866"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3866"
      ],
      "details": "Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip more than and including 44f935695d452cc3fb16845a0c6af710438b153d and prior to 3eb2791c3e9695f7d37ffe84e0c2184fae665cb6.",
      "id": "GSD-2021-3866",
      "modified": "2023-12-13T01:23:34.846024Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@huntr.dev",
        "ID": "CVE-2021-3866",
        "STATE": "PUBLIC",
        "TITLE": "Cross-site Scripting (XSS) - Stored in zulip/zulip"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "zulip/zulip",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003e=",
                          "version_value": "44f935695d452cc3fb16845a0c6af710438b153d"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "3eb2791c3e9695f7d37ffe84e0c2184fae665cb6"
                        }
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          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L",
          "version": "3.0"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2",
            "refsource": "CONFIRM",
            "url": "https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2"
          },
          {
            "name": "https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6",
            "refsource": "MISC",
            "url": "https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6"
          },
          {
            "name": "https://blog.zulip.com/2022/01/19/cve-2021-3866/",
            "refsource": "MISC",
            "url": "https://blog.zulip.com/2022/01/19/cve-2021-3866/"
          }
        ]
      },
      "source": {
        "advisory": "5f48dac5-e112-4b23-bbbf-cc00ba83bcf2",
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
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        "nodes": [
          {
            "children": [],
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                "cpe23Uri": "cpe:2.3:a:zulip:zulip:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.8",
                "vulnerable": true
              }
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          }
        ]
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          "ID": "CVE-2021-3866"
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        "description": {
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          "reference_data": [
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              "refsource": "CONFIRM",
              "tags": [
                "Exploit",
                "Third Party Advisory"
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              "url": "https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2"
            },
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              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6"
            },
            {
              "name": "https://blog.zulip.com/2022/01/19/cve-2021-3866/",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://blog.zulip.com/2022/01/19/cve-2021-3866/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.3,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2022-02-03T14:20Z",
      "publishedDate": "2022-01-20T11:15Z"
    }
  }
}


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Sightings

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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.