CVE-2026-56393
Craft CMS - Multiple Stored Cross-Site Scripting in Settings Names and Field Options
- State
- Published
- Severity
- 4.6 Medium
- Published
- Jun 21, 2026
- Updated
- Jun 22, 2026
- Reserved
- Jun 21, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.6 Medium | 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 | VulnCheck |
| 3.1 | 4.8 Medium | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
cmscraftcms |
|
References
- GHSA Advisory GHSA-4mgv-366x-qxvxvendor-advisory
- https://github.com/craftcms/cms/commit/943152d2246b36f12adf161a03b8695b773d9276patch
- https://github.com/craftcms/cms/commit/67780a778c6ec04e68e64a0b1177c168306144a2patch
- VulnCheck Advisory: Craft CMS - Multiple Stored Cross-Site Scripting in Settings Names and Field Optionsthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.