Vulnerability · Published May 19, 2026 · Assigned by drupal
CVE-2026-6365Drupal core - Critical - Cross-site scripting - SA-CORE-2026-001
Medium 6.1
In plain English
A medium-severity cross-site scripting in Drupal core from Drupal. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 87.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 8.0.0 before 10.5.9, from 10.6.0 before 10.6.7, from 11.0.0 before 11.2.11, from 11.3.0 before 11.3.7.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | drupal/core | 10.5.9, 10.6.7, 11.2.11, 11.3.7 | DRUPAL-CORE-2026-001 |
| Packagist | drupal/core | 10.5.9 | GHSA-f3cj-mjqm-fhvj |
| Packagist | drupal/core | 10.6.7 | GHSA-f3cj-mjqm-fhvj |
| Packagist | drupal/core | 11.2.11 | GHSA-f3cj-mjqm-fhvj |
| Packagist | drupal/core | 11.3.7 | GHSA-f3cj-mjqm-fhvj |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Drupal | Drupal core | 8.0.0 – before 10.5.910.6.0 – before 10.6.711.0.0 – before 11.2.1111.3.0 – before 11.3.7 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N