CVE-2026-55808

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 versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*.

Score

CVSS 3.1 5.4 Medium

Status

Analyzed - mlhess@drupal.org

Published

2026-07-10

Last modified

2026-10-25

Weaknesses

CWE-79

Affected products

• Drupal (Drupal)
• Drupal Core (Drupal)

References

• https://www.drupal.org/sa-core-2026-009