Security advisory

{
  "id": "813153f2d3002ff9f34c3124d50f36002bc8fdf9e650c4227cfeb489b9229846",
  "url": "https://osv.dev/vulnerability/CVE-2021-30109",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-30109",
    "summary": "Froala Editor 3.2.6 is affected by Cross Site Scripting (XSS). Under certain conditions, a base64 crafted string leads to persistent Cross-site scripting (XSS) vulnerability within the hyperlink creation module.",
    "evidence": "osv:CVE-2021-30109",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-30109",
      "aliases": [
        "CVE-2021-30109",
        "GHSA-cq6w-w5rj-p9x8"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/froala/wysiwyg-editor",
              "type": "GIT",
              "events": [
                {
                  "introduced": "955e52436f454cb97488a0ec2f0ca274d290c523"
                },
                {
                  "last_affected": "955e52436f454cb97488a0ec2f0ca274d290c523"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:froala:froala_editor:3.2.6:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.2.6"
                      },
                      {
                        "last_affected": "3.2.6"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.2.6",
            "v3.2.6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-30109.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:41.866312200Z",
      "provider": "osv",
      "references": [
        "https://github.com/Hackdwerg/CVE-2021-30109/blob/main/README.md"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-30109",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435225,
  "published_at": "2021-04-05T13:15:11.657+00:00"
}