Advisory Database
  • Advisories
  • Dependency Scanning
  1. composer
  2. ›
  3. ckeditor/ckeditor
  4. ›
  5. CVE-2021-41165

CVE-2021-41165: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

November 17, 2021 (updated December 28, 2023)

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.

References

  • github.com/advisories/GHSA-7h26-63m7-qhf2
  • github.com/ckeditor/ckeditor4/blob/major/CHANGES.md
  • github.com/ckeditor/ckeditor4/security/advisories/GHSA-7h26-63m7-qhf2
  • nvd.nist.gov/vuln/detail/CVE-2021-41165
  • www.drupal.org/sa-core-2021-011
  • www.oracle.com/security-alerts/cpuapr2022.html
  • www.oracle.com/security-alerts/cpujan2022.html
  • www.oracle.com/security-alerts/cpujul2022.html

Code Behaviors & Features

Detect and mitigate CVE-2021-41165 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 4.17.0

Fixed versions

  • 4.17.0

Solution

Upgrade to version 4.17.0 or above.

Impact 5.4 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

packagist/ckeditor/ckeditor/CVE-2021-41165.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Wed, 14 May 2025 12:14:46 +0000.