CVE-2026-55808

MEDIUM

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

Title source: cna

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 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.*.

References (1)

Core 1

Core References

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

Scores

CVSS v3 5.4

EPSS 0.0015

EPSS Percentile 4.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (6)

Drupal/Drupal core 0.0.0 - 10.5.12

Drupal/Drupal core 0.0.0 - 11.0.*

Drupal/Drupal core 0.0.0 - 11.1.*

Drupal/Drupal core 10.6.0 - 10.6.11

Drupal/Drupal core 11.2.0 - 11.2.14

Drupal/Drupal core 11.3.0 - 11.3.12

Published Jul 10, 2026

Tracked Since Jul 11, 2026