Cross-Site Scripting (XSS) in Drupal Core

Publication date: 2026-05-19

Last updated on: 2026-05-20

Assigner: Drupal.org

Description

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.

CVSS Scores

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Meta Information

Published

2026-05-19

Last Modified

2026-05-20

Generated

2026-06-30

AI Q&A

2026-05-20

EPSS Evaluated

2026-06-28

NVD

CVE-2026-6367

EUVD

EUVD-2026-31002

Affected Vendors & Products

Vendor	Product	Version / Range
drupal	drupal	From 11.3.0 (inc) to 11.3.7 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a Cross-Site Scripting (XSS) issue in Drupal core. It occurs due to improper neutralization of input during web page generation, which means that malicious scripts can be injected into web pages viewed by other users.

Impact Analysis

The impact of this vulnerability is that attackers can execute malicious scripts in the context of the affected website. This can lead to theft of user credentials, session hijacking, defacement of the website, or redirection to malicious sites.

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