CVE-2024-45613: Cross-site scripting (XSS) in the clipboard package

September 25, 2024 (updated October 15, 2024)

During a recent internal audit, we identified a Cross-Site Scripting (XSS) vulnerability in the CKEditor 5 clipboard package. This vulnerability could be triggered by a specific user action, leading to unauthorized JavaScript code execution, if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration.

This vulnerability affects only installations where the editor configuration meets the following criteria:

References

github.com/advisories/GHSA-rgg8-g5x8-wr9v
github.com/ckeditor/ckeditor5
github.com/ckeditor/ckeditor5/releases/tag/v43.1.1
github.com/ckeditor/ckeditor5/security/advisories/GHSA-rgg8-g5x8-wr9v
nvd.nist.gov/vuln/detail/CVE-2024-45613

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