CVE-2026-56381CWE-79

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

Medium · published June 21, 2026

CVSS v4.0
4.6
EPSS
0%
Percentile
15.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
4.6 · MEDIUM
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
EPSS
0.00251 · 15.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-21T13:26Z
EPSS history
Timeline
  • 21 JUN 13:26Z
    Craft CMS - Stored XSS via User Group Name in User Permissions Page
    cvelistv5