CVE-2021-41165: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

November 17, 2021 (updated October 5, 2022)

CKEditor4 is an open source WYSIWYG HTML editor. The vulnerability allowed to inject malformed comments HTML bypassing content sanitization, which could result in executing JavaScript code. It affects all users using the CKEditor 4 at The problem has been recognized and patched.

References

github.com/ckeditor/ckeditor4/blob/major/CHANGES.md
github.com/ckeditor/ckeditor4/security/advisories/GHSA-7h26-63m7-qhf2
nvd.nist.gov/vuln/detail/CVE-2021-41165
www.drupal.org/sa-core-2021-011

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