CVE-2021-41165highCWE-79

CVE-2021-41165: high-severity vulnerability in ckeditor4

HTML comments vulnerability allowing to execute JavaScript code

Published · Updated

Follow this CVE+ Monitor ckeditor4+ Monitor ckeditor

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.2epss 1.6%
CKEditor4 is an open source WYSIWYG HTML editor. In affected version a vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4. 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 version < 4.17.0. The problem has been recognized and patched. The fix will be available in version 4.17.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
Affected products
ckeditor · ckeditor4
Related CVEs — ckeditor4

In the same product, most dangerous first.

CVE-2022-24729MEDIUMRegular expression Denial of Service in dialog pluginEPSS 2.5%CVE-2024-24816MEDIUMCross-site scripting (XSS) vulnerability in samples with enabled the preview featureEPSS 1.7%CVE-2021-41164HIGHAdvanced Content Filter (ACF) vulnerability allowing to execute JavaScript code using malformed HTMLEPSS 1.3%CVE-2021-37695HIGHExecution of JavaScript code using malformed HTML in ckeditorEPSS 1.3%CVE-2022-24728MEDIUMCross-site Scripting in CKEditor4EPSS 1.2%CVE-2021-32808HIGHCross-site scripting in ckeditor via abuse of undo functionalityEPSS 1.2%