CVE-2026-39390 CI4MS has Stored XSS via srcdoc attribute bypass in Google Maps iframe setting

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 striptags with an allowlist and regex-based removal of...

CVE-2026-39390

CVE-2026-39390 affects CI4MS (CodeIgniter 4-based CMS skeleton). Before version 0.31.4.0, the Google Maps iframe setting (cMap) in compInfosPost() sanitizes input with strip_tags() for an allowlist and regex stripping of on\w+ handlers, but the srcdoc attribute is not filtered, allowing an attac...