{"url":"http://public2.vulnerablecode.io/api/packages/748634?format=json","purl":"pkg:npm/ckeditor5-premium-features@43.2.0-alpha.6","type":"npm","namespace":"","name":"ckeditor5-premium-features","version":"43.2.0-alpha.6","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"44.2.1","latest_non_vulnerable_version":"44.2.1","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/27329?format=json","vulnerability_id":"VCID-3htn-j487-3ydn","summary":"Cross-site scripting (XSS) in the CKEditor 5 real-time collaboration package\n### Impact\nDuring a recent internal audit, we identified a Cross-Site Scripting (XSS) vulnerability in the CKEditor 5 real-time collaboration package. This vulnerability can lead to unauthorized JavaScript code execution and affects user markers, which represent users' positions within the document.\n\nThis vulnerability affects only installations with [Real-time collaborative editing](https://ckeditor.com/docs/ckeditor5/latest/features/collaboration/real-time-collaboration/real-time-collaboration.html) enabled.\n\n### Patches\nThe problem has been recognized and patched. The fix will be available in version 44.2.1 (and above).\n\n### For more information\nEmail us at [security@cksource.com](mailto:security@cksource.com) if you have any questions or comments about this advisory.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2025-25299","reference_id":"","reference_type":"","scores":[{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57327","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57314","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57333","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57311","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57376","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57381","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57355","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57375","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57395","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.5738","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00348","scoring_system":"epss","scoring_elements":"0.57378","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00413","scoring_system":"epss","scoring_elements":"0.61498","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00413","scoring_system":"epss","scoring_elements":"0.6147","published_at":"2026-04-02T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-25299"},{"reference_url":"https://ckeditor.com/docs/ckeditor5/latest/features/collaboration/real-time-collaboration/real-time-collaboration.html","reference_id":"","reference_type":"","scores":[{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://ckeditor.com/docs/ckeditor5/latest/features/collaboration/real-time-collaboration/real-time-collaboration.html"},{"reference_url":"https://ckeditor.com/docs/ckeditor5/latest/features/collaboration/real-time-collaboration/real-time-collaboration.html?docId=ee1dca024c9b4e44aef039f99ebe6c664","reference_id":"","reference_type":"","scores":[{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://ckeditor.com/docs/ckeditor5/latest/features/collaboration/real-time-collaboration/real-time-collaboration.html?docId=ee1dca024c9b4e44aef039f99ebe6c664"},{"reference_url":"https://github.com/ckeditor/ckeditor5","reference_id":"","reference_type":"","scores":[{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor5"},{"reference_url":"https://github.com/ckeditor/ckeditor5/releases/tag/v44.2.1","reference_id":"","reference_type":"","scores":[{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor5/releases/tag/v44.2.1"},{"reference_url":"https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-j3mm-wmfm-mwvh","reference_id":"","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-j3mm-wmfm-mwvh"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2025-25299","reference_id":"","reference_type":"","scores":[{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-25299"},{"reference_url":"https://github.com/advisories/GHSA-j3mm-wmfm-mwvh","reference_id":"GHSA-j3mm-wmfm-mwvh","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-j3mm-wmfm-mwvh"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/69596?format=json","purl":"pkg:npm/ckeditor5-premium-features@44.2.1","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor5-premium-features@44.2.1"}],"aliases":["CVE-2025-25299","GHSA-j3mm-wmfm-mwvh"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-3htn-j487-3ydn"}],"fixing_vulnerabilities":[],"risk_score":"3.1","resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor5-premium-features@43.2.0-alpha.6"}