Drupal core - Moderately critical - Cross-site scripting - SA-CORE-2026-003

Drupal core - Moderately critical - Cross-site scripting - SA-CORE-2026-003

https://www.drupal.org/security/rss.xml / Wed, 04/15/2026 - 22:01
Project: 
Drupal core
Date: 
2026-April-15
Security risk: 
Moderately critical 13 ∕ 25 AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Default
Vulnerability: 
Cross-site scripting
Affected versions: 
>= 11.3.0 < 11.3.7
CVE IDs: 
CVE-2026-6367
Description: 

Drupal 11.3 comes with support for completing entity suggestions whilst adding a link to CKEditor 5.

The suggestions aren't sufficiently sanitized and a malicious user could trigger a stored cross site scripting attack against another user.

Solution: 

Install the latest version:

  • If you use Drupal 11.3.x, update to Drupal 11.3.7
  • Drupal versions below 11.3 are not affected by this vulnerability
Reported By: 
Fixed By: 
Coordinated By: 

About

Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.