CVE-2021-41164
8.2 · HIGHOverview
CVE-2021-41164 is a high-severity vulnerability affecting ckeditor ckeditor. It was published on November 17, 2021 and has a CVSS 3.1 base score of 8.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from ckeditor. Update ckeditor to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ckeditor | ckeditor | >= 4.0, < 4.17.0 | Affected |
| drupal | drupal | >= 8.9.0, < 8.9.20 | Affected |
| oracle | banking_apis | 18.1 | Affected |
| oracle | banking_digital_experience | 18.1 | Affected |
| oracle | application_express | >= 0, < 22.1 | Affected |
References
Frequently Asked Questions
What is CVE-2021-41164?
CVE-2021-41164 is a high-severity vulnerability affecting ckeditor ckeditor. It was published on November 17, 2021 and has a CVSS 3.1 base score of 8.2 (HIGH).
How severe is CVE-2021-41164?
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-41164?
Check the references section for vendor advisories and patches from ckeditor. Update ckeditor to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-41164?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-41164 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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