ckeditor/ckeditor4 · Security
HTML comments vulnerability allowing to execute JavaScript code
- GHSA ID
- GHSA-7h26-63m7-qhf2
- CVE ID
- CVE-2021-41165
- Severity
- high
- Published
- Updated
- CVSS
- 8.2 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
- CVSS v3
- 8.2 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
Description
Affected packages
The vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4.
Impact
A potential vulnerability has been discovered in CKEditor 4 HTML processing core module. The vulnerability allowed to inject malformed comments HTML bypassing content sanitization, which could result in executing JavaScript code. It affects all users using the CKEditor 4 at version < 4.17.0.
Patches
The problem has been recognized and patched. The fix will be available in version 4.17.0.
For more information
Email us at [email protected] if you have any questions or comments about this advisory.
Acknowledgements
The CKEditor 4 team would like to thank William Bowling (wbowling) for recognizing and reporting this vulnerability.
CWEs
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7h26-63m7-qhf2 ↗
- https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-417 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2021-41165 ↗
- https://www.drupal.org/sa-core-2021-011 ↗
- https://www.oracle.com/security-alerts/cpujan2022.html ↗
- https://www.oracle.com/security-alerts/cpuapr2022.html ↗
- https://www.oracle.com/security-alerts/cpujul2022.html ↗
- https://github.com/advisories/GHSA-7h26-63m7-qhf2 ↗