CVE-2026-55805: Drupal Core

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Stored XSS. This issue affects Drupal core versions: from 0.0.0 to 10.6.13, from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*, from 0.0.0 to 11.2.*.

Affected products

• Drupal Drupal Core: from 0.0.0, before 10.6.13 (fixed in 10.6.13); from 11.3.0, before 11.3.14 (fixed in 11.3.14); from 11.4.0, before 11.4.4 (fixed in 11.4.4); from 0.0.0, before 11.1 (fixed in 11.1); from 0.0.0, before 11.2 (fixed in 11.2); from 0.0.0, before 11.3 (fixed in 11.3)

Published 2026-08-25. Last modified 2026-08-28.