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CVE-2026-39390GHSA-X3HR-CP7X-44R2

CI4MS has Stored XSS via srcdoc attribute bypass in Google Maps iframe setting

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 0.31.4.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the Google Maps iframe setting (cMap field) in compInfosPost() sanitizes input using strip_tags() with an <iframe> allowlist and regex-based removal of on\w+ event handlers. However, the srcdoc attribute is not an event handler and passes all filters. An attacker with admin settings access can inject an <iframe srcdoc="..."> payload with HTML-entity-encoded JavaScript that executes in the context of the parent page when rendered to unauthenticated frontend visitors. This vulnerability is fixed in 0.31.4.0.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • ci4-cms-erp ci4ms

    fixed in 0.31.4.0

  • ci4-cms-erp/ci4msPackagist

    fixed in 0.31.4.0

References 1

GitHub · ci4-cms-erp/ci4ms