CVE-2026-55808

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

State: Published
Severity: 5.4 Medium
Published: Jul 10, 2026
Updated: Jul 13, 2026
Reserved: Jun 17, 2026

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.*.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	CISA-ADP

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting")

Affected Products

Product	Versions
Drupal coreDrupal	0.0.0 to before 10.5.12Affected 10.6.0 to before 10.6.11Affected 11.2.0 to before 11.2.14Affected 11.3.0 to before 11.3.12Affected 0.0.0 to before 11.0.Affected 0.0.0 to before 11.1.Affected

References

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

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