CVE-2026-56381

Craft CMS - Stored XSS via User Group Name in User Permissions Page

Published Jun 21, 2026 CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Description
Craft CMS from version 5.0.0-RC1 contains a stored cross-site scripting vulnerability in the User Permissions page where user group names are rendered without proper HTML escaping. Attackers with admin access can inject arbitrary JavaScript via the user group name field that executes when other users view or edit permissions.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-g3hp-vvqf-8vw6 Craft CMS Vulnerable to Stored XSS via User Group Name in User Permissions Page
History
Type Values Removed Values Added
First Time appeared Craftcms
Craftcms craftcms
Vendors & Products Craftcms
Craftcms craftcms
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Craft CMS from version 5.0.0-RC1 contains a stored cross-site scripting vulnerability in the User Permissions page where user group names are rendered without proper HTML escaping. Attackers with admin access can inject arbitrary JavaScript via the user group name field that executes when other users view or edit permissions.
Title Craft CMS - Stored XSS via User Group Name in User Permissions Page
First Time appeared Juzaweb
Juzaweb cms
Weaknesses CWE-79
CPEs cpe:2.3:a:juzaweb:cms:*:*:*:*:*:*:*:*
Vendors & Products Juzaweb
Juzaweb cms
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 4.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:06 PM
Reserved
Jun 21, 2026, 2:05 AM
Status
Deferred
Published
Jun 21, 2026, 2:16 PM
Modified
Oct 25, 2026, 11:10 PM