ghsa-52mq-6jcv-j79x
Vulnerability from github
Published
2021-03-03 02:23
Modified
2021-04-14 19:07
Severity ?
2.6 (Low) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
Summary
User content sandbox can be confused into opening arbitrary documents
Details

Impact

The user content sandbox can be abused to trick users into opening unexpected documents after several user interactions. The content can be opened with a blob origin from the Matrix client, so it is possible for a malicious document to access user messages and secrets.

Patches

This has been fixed by https://github.com/matrix-org/matrix-react-sdk/pull/5657, which is included in 3.15.0.

Workarounds

There are no known workarounds.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "matrix-react-sdk"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.15.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21320"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-345"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-02T02:47:04Z",
    "nvd_published_at": "2021-03-02T03:15:00Z",
    "severity": "LOW"
  },
  "details": "### Impact\n\nThe user content sandbox can be abused to trick users into opening unexpected documents after several user interactions. The content can be opened with a `blob` origin from the Matrix client, so it is possible for a malicious document to access user messages and secrets.\n\n### Patches\n\nThis has been fixed by https://github.com/matrix-org/matrix-react-sdk/pull/5657, which is included in 3.15.0.\n\n### Workarounds\n\nThere are no known workarounds.",
  "id": "GHSA-52mq-6jcv-j79x",
  "modified": "2021-04-14T19:07:25Z",
  "published": "2021-03-03T02:23:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-52mq-6jcv-j79x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21320"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/matrix-react-sdk/pull/5657"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/matrix-react-sdk/commit/b386f0c73b95ecbb6ea7f8f79c6ff5171a8dedd1"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/matrix-react-sdk"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "User content sandbox can be confused into opening arbitrary documents"
}


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