CVE-2026-56393CWE-79

Craft CMS - Multiple Stored Cross-Site Scripting in Settings Names and Field Options

Medium · published June 21, 2026

CVSS v4.0
4.6
EPSS
0%
Percentile
23.7
In the wild
Unconfirmed
What it is

Craft CMS 4.x (>= 4.0.0-RC1, < 4.17.0-beta.1) and 5.x (>= 5.0.0-RC1, < 5.9.0-beta.1) contain multiple stored cross-site scripting vulnerabilities where settings names and field option labels are rendered without sanitization (e.g., via the checkbox.twig template, which used {{ label|raw }}). An authenticated administrator (with allowAdminChanges enabled) can inject malicious payloads into section names, volume names, user group names, global set names, generated field names, checkbox/radio option labels, and custom source labels, causing arbitrary JavaScript to execute in other users' control-panel sessions. Fixed in 4.17.0-beta.1 and 5.9.0-beta.1.

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
0.00320 · 23.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-21T13:27Z
EPSS history
Timeline
  • 21 JUN 13:27Z
    Craft CMS - Multiple Stored Cross-Site Scripting in Settings Names and Field Options
    cvelistv5