Clipboard feature vulnerability allowing to inject arbitrary HTML into the editor using paste functionality

Description

The vulnerability has been discovered in clipboard plugin. All plugins with clipboard plugin dependency are affected:

• clipboard
• pastetext
• pastetools
• widget
• uploadwidget
• autolink
• tableselection

Recommendation

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

• Affected version(s): >= 4.5.2, < 4.16.2
• Patched version(s): 4.16.2

References

• GHSA-7889-rm5j-hpgg
• lists.fedoraproject.org
• www.oracle.com
• CVE-2021-32809
• CWE-79
• CWE-94
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Widget feature vulnerability allowing to execute JavaScript code using undo functionality - CVE-2021-32808
• Fake objects feature vulnerability allowing to execute JavaScript code using malformed HTML. - CVE-2021-37695
• Advanced Content Filter (ACF) vulnerability allowing to execute JavaScript code using malformed HTML - CVE-2021-41164
• HTML comments vulnerability allowing to execute JavaScript code - CVE-2021-41165

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Tags:

npm

ckeditor4