Inclusion of Functionality from Untrusted Control Sphere in CKEditor 4

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).

Recommendation

Update the ckeditor4 package to the latest compatible version. Followings are version details:

• Affected version(s): < 4.16.0
• Patched version(s): 4.16.0

References

• GHSA-wpvm-wqr4-p7cw
• ckeditor.com
• www.oracle.com
• CVE-2021-26272
• CWE-829
• CAPEC-310
• OWASP 2021-A6
• OWASP 2021-A8

Related Issues

• Clipboard feature vulnerability allowing to inject arbitrary HTML into the editor using paste functionality - CVE-2021-32809
• Widget feature vulnerability allowing to execute JavaScript code using undo functionality - CVE-2021-32808
• CKEditor cross-site scripting vulnerability in AJAX sample - CVE-2023-4771
• Regular expression Denial of Service in multiple packages - @ckeditor/ckeditor5-paste-from-office - CVE-2021-21391

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Tags:

npm

ckeditor4