CVE-2026-55808CWE-79

Drupal core - Moderately critical - Improper validation - SA-CORE-2026-009

Medium · published July 10, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
18.7
In the wild
Unconfirmed
What it is

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.*.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00273 · 18.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-10T21:46Z
EPSS history
Timeline
  • 10 JUL 21:46Z
    Drupal core - Moderately critical - Improper validation - SA-CORE-2026-009
    cvelistv5