CVE-2026-15917

EUVD-2026-66184
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 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.2.*.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
drupalCNA
4.7 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 2.84%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
drupaldrupal
11.3.0 ≤
𝑥
< 11.3.14
CNA
drupaldrupal
11.4.0 ≤
𝑥
< 11.4.4
CNA
drupaldrupal
0.0.0 ≤
𝑥
< 11.3.0
CNA
Common Weakness Enumeration
References
https://www.drupal.org/sa-core-2026-011