The vulnerability has been discovered in clipboard plugin. All plugins with clipboard plugin dependency are affected:
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.
Email us at [email protected] if you have any questions or comments about this advisory.
The CKEditor 4 team would like to thank Anton Subbotin (skavans) for recognizing and reporting this vulnerability.
github.com/ckeditor/ckeditor4
github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgg
lists.fedoraproject.org/archives/list/[email protected]/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T
lists.fedoraproject.org/archives/list/[email protected]/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW
lists.fedoraproject.org/archives/list/[email protected]/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD
nvd.nist.gov/vuln/detail/CVE-2021-32809
www.oracle.com/security-alerts/cpujan2022.html
www.oracle.com/security-alerts/cpuoct2021.html