CKEditor is susceptible to Cross-Site Scripting (XSS) through its clipboard package

{
  "id": "89e38403fc1327ec53e3e3a22266d702e69e51306511c0a67bcd0a5d68be1374",
  "url": "https://osv.dev/vulnerability/CVE-2025-58064",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CKEditor is susceptible to Cross-Site Scripting (XSS) through its clipboard package",
    "summary": "CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit could be triggered by a specific user action (leading to unauthorized JavaScript code execution) if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability affects installations where the editor configuration meets one of the following criteria: the HTML embed plugin is enabled, or there is a custom plugin introducing an editable element where view RawElement is enabled. This issue is fixed in versions 45.2.2 and 46.0.3 of both ckeditor5 and ckeditor5-clipboard.",
    "evidence": "osv:CVE-2025-58064",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2025-58064",
      "aliases": [
        "CVE-2025-58064",
        "GHSA-x9gp-vjh6-3wv6"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ckeditor/ckeditor5",
              "type": "GIT",
              "events": [
                {
                  "introduced": "dbfa58ae1555371afa7850fa31e5400e7729390c"
                },
                {
                  "fixed": "ef1998b371b9a7bd5c33cea8d370445509e3298a"
                },
                {
                  "introduced": "6b7f659ce35b095ed28274bf904ab1b7fcfbabe0"
                },
                {
                  "fixed": "b710f224d84cfd3174a7e1ae50055292bde75516"
                },
                {
                  "fixed": "b210e90c6cf84e662ef6c7daf93a92355a961bf2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "46.0.0"
                      },
                      {
                        "fixed": "46.0.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "44.2.0"
                      },
                      {
                        "fixed": "45.2.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b210e90c6cf84e662ef6c7daf93a92355a961bf2"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v45.2.1",
            "v46.0.2",
            "v46.0.1",
            "v46.0.0",
            "v45.2.0",
            "v45.1.0",
            "v45.0.0",
            "v44.3.0",
            "v44.2.1",
            "v44.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-58064.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.410770467Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58064.json",
        "https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-x9gp-vjh6-3wv6",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-58064",
        "https://github.com/ckeditor/ckeditor5/commit/b210e90c6cf84e662ef6c7daf93a92355a961bf2"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58064.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-58064",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490988,
  "published_at": "2025-09-03T22:02:53.296+00:00"
}