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CVE-2026-56393GHSA-4MGV-366X-QXVX

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.9.0-beta.1, 4.17.0-beta.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • craftcms cms

    From 5.0.0-RC1 · fixed in 5.9.0-beta.1; From 4.0.0-RC1 · fixed in 4.17.0-beta.1

  • craftcms/cmsPackagist

    From 5.0.0-RC1 · fixed in 5.9.0-beta.1

  • craftcms/cmsPackagist

    From 4.0.0-RC1 · fixed in 4.17.0-beta.1

References 4

GitHub · craftcms/cms

vulncheck.com