QID 730266

Date Published: 2021-11-23

QID 730266: Drupal Core Cross-Site Scripting (XSS) Vulnerability (SA-CORE-2021-011)

Drupal is a free and open source content management framework written in PHP and distributed under the GNU General Public License.

An attacker that can create or edit content (even without access to CKEditor themselves) may be able to exploit one or more Cross-Site Scripting (XSS) vulnerabilities to target users with access to the WYSIWYG CKEditor, including site admins with privileged access.

Affected Versions:
Drupal 8.9.x, prior to Drupal 8.9.20.
Drupal 9.1.x, prior to Drupal 9.1.14.
Drupal 9.2.x, prior to Drupal 9.2.9.

QID Detection Logic:
This QID checks for vulnerable version of Drupal installed on the target via a version based check.

Successful execution of these vulnerabilities may allow an attacker to exploit one or more Cross-Site Scripting (XSS) vulnerabilities to target users with access to the WYSIWYG CKEditor, including site admins with privileged access.

  • CVSS V3 rated as Medium - 5.4 severity.
  • CVSS V2 rated as Medium - 3.5 severity.
    • Solution
    Vendor has released patch, Customers are advised to update to latest drupal version. For more information refer to Drupal security advisory SA-CORE-2021-011

    Vendor References

    CVEs related to QID 730266

    CVE-2021-41165 | CVE-2021-41164 |
    Software Advisories
    Advisory ID Software Component Link
    SA-CORE-2021-011 URL Logo www.drupal.org/sa-core-2021-011
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