Vulnerability advisory
GHSA-wpvm-wqr4-p7cw
Inclusion of Functionality from Untrusted Control Sphere in CKEditor 4
Also known as CVE-2021-26272
Severity
- CVSS 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected versions
| Affected | Fixed in |
|---|---|
| All versions before 4.16.0 | 4.16.0Advisories → |
Description
It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).
References
- Advisorynvd.nist.gov/vuln/detail/CVE-2021-26272 ↗
- Webckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first ↗
- Packagegithub.com/ckeditor/ckeditor4 ↗
- Webgithub.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416 ↗
- Webwww.oracle.com//security-alerts/cpujul2021.html ↗
- Webwww.oracle.com/security-alerts/cpujan2022.html ↗
- Webwww.oracle.com/security-alerts/cpuoct2021.html ↗