CVE-2026-55808

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

Published Jul 10, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
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.*.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Drupal
Drupal drupal Core
Vendors & Products Drupal
Drupal drupal Core
Type Values Removed Values Added
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.*.
Title Drupal core - Moderately critical - Improper validation - SA-CORE-2026-009
Weaknesses CWE-79
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
drupal
Published
Updated
Jul 13, 2026, 6:18 PM
Reserved
Jun 17, 2026, 2:59 PM
Status
Analyzed
Published
Jul 10, 2026, 10:16 PM
Modified
Oct 25, 2026, 3:10 PM