GSD-2022-21650

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
Convos is an open source multi-user chat that runs in a web browser. You can't use SVG extension in Convos' chat window, but you can upload a file with an .html extension. By uploading an SVG file with an html extension the upload filter can be bypassed. This causes Stored XSS. Also, after uploading a file the XSS attack is triggered upon a user viewing the file. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2022-21650",
    "description": "Convos is an open source multi-user chat that runs in a web browser. You can\u0027t use SVG extension in Convos\u0027 chat window, but you can upload a file with an .html extension. By uploading an SVG file with an html extension the upload filter can be bypassed. This causes Stored XSS. Also, after uploading a file the XSS attack is triggered upon a user viewing the file. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible.",
    "id": "GSD-2022-21650"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-21650"
      ],
      "details": "Convos is an open source multi-user chat that runs in a web browser. You can\u0027t use SVG extension in Convos\u0027 chat window, but you can upload a file with an .html extension. By uploading an SVG file with an html extension the upload filter can be bypassed. This causes Stored XSS. Also, after uploading a file the XSS attack is triggered upon a user viewing the file. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible.",
      "id": "GSD-2022-21650",
      "modified": "2023-12-13T01:19:14.807282Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2022-21650",
        "STATE": "PUBLIC",
        "TITLE": "Stored XSS via html file upload in convos"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "convos",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003e= 6.48, \u003c 6.52"
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          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
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          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
          "version": "3.1"
        }
      },
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                "lang": "eng",
                "value": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
              }
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          }
        ]
      },
      "references": {
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            "name": "https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#First-vulnerability",
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      "impact": {
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            "accessVector": "NETWORK",
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            "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
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          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
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            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
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            "scope": "CHANGED",
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      },
      "lastModifiedDate": "2022-01-11T21:48Z",
      "publishedDate": "2022-01-04T21:15Z"
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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