MediumGHSA-pw6f-3999-xp7gBIT-drupal-2026-6367CVE-2026-6367DRUPAL-CORE-2026-003

Drupal core allows Cross-Site Scripting (XSS)

Published 20 May 2026 · Updated 10 Sept 2026

Affected package

drupal/coreComposer
Affected
>=11.3.0 <11.3.7
Fixed in
11.3.7
Update to the fixed version for your release line, for example:composer require drupal/core:^11.3.7

Details

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS).

This issue affects Drupal core: from 11.3.0 before 11.3.7.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.