CVE-2024-45613: medium-severity vulnerability in ckeditor5
CKEditor 5 has Cross-site Scripting vulnerability in the clipboard package
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.1epss 0.5%
CKEditor 5 is a JavaScript rich-text editor. Starting in version 40.0.0 and prior to version 43.1.1, a Cross-Site Scripting (XSS) vulnerability is present 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 only affects installations where the Block Toolbar plugin is enabled and either the General HTML Support (with a configuration that permits unsafe markup) or the HTML Embed plugin is also enabled. A fix for the problem is available in version 43.1.1. As a workaround, one may disable the block toolbar plugin.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Affected products
ckeditor · ckeditor5Related CVEs — ckeditor5
In the same product, most dangerous first.
CVE-2021-21254MEDIUMRegular expression Denial of Service in Markdown pluginEPSS 1.8%CVE-2021-21391MEDIUMRegular expression Denial of Service in multiple packagesEPSS 1.7%CVE-2022-31175MEDIUMCross-site scripting caused by the editor instance destroying process in ckeditor5EPSS 0.9%CVE-2025-25299LOWCross-site scripting (XSS) in the real-time collaboration packageEPSS 0.6%CVE-2026-116688HIGHCKEditor: Cross-site scripting (XSS) in the engine packageEPSS 0.5%CVE-2025-58064LOWCKEditor is susceptible to Cross-Site Scripting (XSS) through its clipboard packageEPSS 0.4%