A security vulnerability has been identified in Drupal core, affecting several versions of the popular content management system. This flaw, known as Cross-Site Scripting (XSS), could allow attackers to inject malicious code into web pages, potentially impacting users who visit affected sites.
CVE Details
This particular issue is officially tracked as CVE-2026-6365.
- Product: Drupal core
- Published Date: May 19, 2026
- Severity: Medium
- Status: Analyzed
Affected Products
The Cross-Site Scripting vulnerability impacts various branches of Drupal core. If you are running any of the following versions, your system may be at risk:
- Drupal core from version 8.0.0 up to, but not including, 10.5.9
- Drupal core from version 10.6.0 up to, but not including, 10.6.7
- Drupal core from version 11.0.0 up to, but not including, 11.2.11
- Drupal core from version 11.3.0 up to, but not including, 11.3.7
Current Status
As of May 20, 2026, this vulnerability has been “Analyzed.” This means the details of the flaw have been reviewed and understood by security experts. Organizations using Drupal should take this analysis seriously and consider implementing the recommended solutions.
Severity Level
The vulnerability is rated as “Medium” severity. A medium severity rating indicates that while the vulnerability is not immediately critical, it could still lead to significant issues if exploited. In the case of an XSS vulnerability, attackers could potentially deface websites, steal user session cookies, or redirect users to malicious sites. While often requiring user interaction, the impact can be considerable, making it important to address promptly.
Possible Solutions
To secure your Drupal installation against this Cross-Site Scripting vulnerability, the most effective solution is to update your Drupal core to a patched version. Based on the affected versions, users should upgrade to the latest secure releases within their respective branches:
- For the 10.5.x branch, update to Drupal core 10.5.9 or later.
- For the 10.6.x branch, update to Drupal core 10.6.7 or later.
- For the 11.2.x branch, update to Drupal core 11.2.11 or later.
- For the 11.3.x branch, update to Drupal core 11.3.7 or later.
Always ensure you back up your website before performing any updates. Regularly checking the official Drupal security advisories is also a good practice to stay informed about potential threats and available patches.
References
https://www.drupal.org/sa-core-2026-001
