CVE-2026-56393

MEDIUM EPSS 8.1%
Published Jun 21, 20261w ago · Modified Jun 22, 20261w ago
4.6 CVSS 4.0
Medium
Find Similar
Published Jun 21, 2026 1w ago
Last Modified Jun 22, 2026 1w ago

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.

CVSS Details

Base Score
4.6
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
8.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

References 4

  • github.com https://github.com/craftcms/cms/commit/67780a778c6ec04e68e64a0b1177c168306144a2
  • github.com https://github.com/craftcms/cms/commit/943152d2246b36f12adf161a03b8695b773d9276
  • github.com https://github.com/craftcms/cms/security/advisories/GHSA-4mgv-366x-qxvx
  • vulncheck.com https://www.vulncheck.com/advisories/craft-cms-multiple-stored-cross-site-scripting-in-settings-names-and-field-options

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.