Security advisory

{
  "id": "97a11f4fe720f30c4483f30cc01905bd08cae5ff8d685e9b4d5759e7f2b2359d",
  "url": "https://osv.dev/vulnerability/CVE-2021-29438",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-29438",
    "summary": "The Nextcloud dialogs library (npm package @nextcloud/dialogs) before 3.1.2 insufficiently escaped text input passed to a toast. If your application displays toasts with user-supplied input, this could lead to a XSS vulnerability. The vulnerability has been patched in version 3.1.2 If you need to display HTML in the toast, explicitly pass the `options.isHTML` config flag.",
    "evidence": "osv:CVE-2021-29438",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-29438",
      "aliases": [
        "CVE-2021-29438",
        "GHSA-g3fq-3v3g-mh32"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud-libraries/nextcloud-dialogs",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9e4acefa165177c40204aff768e24bcc4b4a6aec"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nextcloud\\/dialogs_project:nextcloud\\/dialogs:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.1.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.1",
            "v2.0.0",
            "v1.4.0",
            "v1.3.1",
            "v1.3.0",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.0",
            "v1.0.0",
            "v0.1.1",
            "v0.1.0",
            "v0.0.3",
            "v0.0.2",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29438.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:45.372036847Z",
      "provider": "osv",
      "references": [
        "https://www.npmjs.com/package/%40nextcloud/dialogs",
        "https://github.com/nextcloud/nextcloud-dialogs/security/advisories/GHSA-g3fq-3v3g-mh32"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-29438",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384582,
  "published_at": "2021-04-13T20:15:22.187+00:00"
}