Vulnerability advisory

CVE-2021-32809

Published Aug 12, 2021Updated Oct 24, 2026OSV record ↗

Severity

CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected versions

Repository

Affected commits	Fixed by commit
GIT github.com/ckeditor/ckeditor4 ↗
09b0ccacde0cd27b62eb8fa75ccfa960d272436f to before 4e64f672190a14d3c38aebd94ae4fb10c79e4545	`4e64f672190a14d3c38aebd94ae4fb10c79e4545`
Also listed as affected (27) `4.16.1` `4.15.1` `4.14.1` `4.13.1` `4.12.1` `4.7.2` `4.11.4` `4.11.3` `4.11.2` `4.11.1` `4.10.1` `4.9.2` `4.9.1` `4.7.3` `4.7.1` `4.6.2` `4.6.1` `4.5.11` `4.5.10` `4.5.9` `4.5.8` `4.5.7` `4.5.6` `4.5.5` `4.5.4` `4.5.3` `4.5.2`
GIT github.com/ckeditor/ckeditor4-releases ↗
1b8c5f8ce1625487c8509c02332907a3635a361a to before 0919c6a34271f9776c495e78deff75ffefe52b62	`0919c6a34271f9776c495e78deff75ffefe52b62`
Also listed as affected (38) `standard/4.16.1` `standard/4.16.0` `standard/4.15.1` `standard/4.15.0` `standard/4.14.1` `standard/4.14.0` `standard/4.13.1` `standard/4.13.0` `standard/4.12.1` `standard/4.12.0` `standard/4.11.4` `standard/4.11.3` `standard/4.11.2` `standard/4.11.1` `standard/4.11.0` `standard/4.10.1` `standard/4.10.0` `standard/4.9.2` `standard/4.9.1` `standard/4.9.0` `standard/4.8.0` `standard/4.7.3` `standard/4.7.2` `standard/4.7.1` `standard/4.7.0` `standard/4.6.2` `standard/4.6.1` `standard/4.6.0` `standard/4.5.11` `standard/4.5.10` `standard/4.5.9` `standard/4.5.8` `standard/4.5.7` `standard/4.5.6` `standard/4.5.5` `standard/4.5.4` `standard/4.5.3` `standard/4.5.2`

Description

ckeditor is an open source WYSIWYG HTML editor with rich content support. 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. The problem has been recognized and patched. The fix will be available in version 4.16.2.

CVE-2021-32809

Affected versions

Repository

Description

References