CVE-2021-41164

Advanced Content Filter (ACF) vulnerability allowing to execute JavaScript code using malformed HTML

Description

CKEditor4 is an open source WYSIWYG HTML editor. In affected versions a vulnerability has been discovered in the Advanced Content Filter (ACF) module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed 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.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: ckeditor ckeditor4
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-41164?
CVE-2021-41164 has been scored as a high severity vulnerability.
How to fix CVE-2021-41164?
To fix CVE-2021-41164, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41164 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-41164 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41164?
CVE-2021-41164 affects ckeditor ckeditor4.
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