npm/@ckeditor/ckeditor5-html-support CVE-2026-28343: medium 6.4, EPSS 0.32%
CKEditor 5 has Cross-site Scripting (XSS) in the HTML Support package
Action: Upgrade @ckeditor/ckeditor5-html-support to 47.6.0 or later.
npm i @ckeditor/ckeditor5-html-support@47.6.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 29.0.0 | 47.6.0 | - |
Fixed versions
| 47.6.0 |
Sources
- osv: GHSA-jrqm-vmqc-gm93
- https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-jrqm-vmqc-gm93
- https://nvd.nist.gov/vuln/detail/CVE-2026-28343
- https://github.com/ckeditor/ckeditor5
- https://github.com/ckeditor/ckeditor5/releases/tag/v29.0.0
- https://github.com/ckeditor/ckeditor5/releases/tag/v47.6.0
CVE-2026-28343 · published · modified · JSON