Clipboard feature vulnerability allowing to inject arbitrary HTML into the editor using paste functionality
Affected packages
The vulnerability has been discovered in clipboard plugin. All plugins with clipboard plugin dependency are affected:
Impact
A potential vulnerability has been discovered in CKEditor 4 Clipboard package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2.
Patches
The problem has been recognized and patched. The fix will be available in version 4.16.2.
For more information
Email us at security@cksource.com if you have any questions or comments about this advisory.
Acknowledgements
The CKEditor 4 team would like to thank Anton Subbotin (skavans) for recognizing and reporting this vulnerability.
Software afectado
Haz clic en una tecnología para ver todas sus vulnerabilidades.
| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | ckeditor4 | >= 4.5.2, < 4.16.2 | 4.16.2 |
Referencias
- https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgg
- https://nvd.nist.gov/vuln/detail/CVE-2021-32809
- https://github.com/ckeditor/ckeditor4
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N- Debilidad (CWE)
CWE-79, CWE-94- Plataforma
- npm
- Paquete
ckeditor4- Publicada
- 23.08.2021
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-7889-rm5j-hpgg - CC BY 4.0
Historial de vulnerabilidades: ckeditor4
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 15
- Primera → última
- 05.2021 08.2024
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 4
- Media 11
Divulgaciones por año
- 2021: 8
- 2022: 2
- 2023: 0
- 2024: 5
- 2025: 0
- 2026: 0
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Clipboard feature vulnerability allowing to inject arbitrary HTML into the editor using paste functionality esta entrada
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