cnvd-2021-09293
Vulnerability from cnvd
Title
Nextcloud Server跨站脚本漏洞（CNVD-2021-09293）
Description
Nextcloud是一套用于创建文件托管服务并使用的客户端-服务器软件。Nextcloud Server是服务器软件。 Nextcloud Server 20.0.2、19.0.5、18.0.11之前版本存在跨站脚本漏洞。该漏洞源于缺少链接验证。攻击者可通过以markdown格式保存'javascript:' URL利用该漏洞进行跨站脚本攻击。
Severity
中
Patch Name
Nextcloud Server跨站脚本漏洞（CNVD-2021-09293）的补丁
Patch Description
Nextcloud是一套用于创建文件托管服务并使用的客户端-服务器软件。Nextcloud Server是服务器软件。 Nextcloud Server 20.0.2、19.0.5、18.0.11之前版本存在跨站脚本漏洞。该漏洞源于缺少链接验证。攻击者可通过以markdown格式保存'javascript:' URL利用该漏洞进行跨站脚本攻击。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://nextcloud.com/security/advisory/?id=NC-SA-2021-002

Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-8294
Impacted products
Name
['Nextcloud Nextcloud Server <20.0.2', 'Nextcloud Nextcloud Server <19.0.5', 'Nextcloud Nextcloud Server <18.0.11']
Show details on source website

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8294",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-8294"
    }
  },
  "description": "Nextcloud\u662f\u4e00\u5957\u7528\u4e8e\u521b\u5efa\u6587\u4ef6\u6258\u7ba1\u670d\u52a1\u5e76\u4f7f\u7528\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u8f6f\u4ef6\u3002Nextcloud Server\u662f\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\n\nNextcloud Server 20.0.2\u300119.0.5\u300118.0.11\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f3a\u5c11\u94fe\u63a5\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4ee5markdown\u683c\u5f0f\u4fdd\u5b58\u0027javascript:\u0027 URL\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u8de8\u7ad9\u811a\u672c\u653b\u51fb\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://nextcloud.com/security/advisory/?id=NC-SA-2021-002",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-09293",
  "openTime": "2021-02-05",
  "patchDescription": "Nextcloud\u662f\u4e00\u5957\u7528\u4e8e\u521b\u5efa\u6587\u4ef6\u6258\u7ba1\u670d\u52a1\u5e76\u4f7f\u7528\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u8f6f\u4ef6\u3002Nextcloud Server\u662f\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\r\n\r\nNextcloud Server 20.0.2\u300119.0.5\u300118.0.11\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f3a\u5c11\u94fe\u63a5\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4ee5markdown\u683c\u5f0f\u4fdd\u5b58\u0027javascript:\u0027 URL\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u8de8\u7ad9\u811a\u672c\u653b\u51fb\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Nextcloud Server\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-09293\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Nextcloud Nextcloud Server \u003c20.0.2",
      "Nextcloud Nextcloud Server \u003c19.0.5",
      "Nextcloud Nextcloud Server \u003c18.0.11"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-8294",
  "serverity": "\u4e2d",
  "submitTime": "2021-02-04",
  "title": "Nextcloud Server\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-09293\uff09"
}


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