CVE-2026-39390

Publication date

2026-04-08 14:29:28

Family

GitHub_M

State

PUBLISHED

Description

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 allowlist and regex-based removal of onw+ 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.</p> </div> </div> </div> </div> </div> </div> </div> <footer> <div class="container py-4 py-lg-10"> <hr> <div class="text-muted d-flex justify-content-between align-items-center pt-3" style="text-align: center;"> <p class="mb-10"><center>Copyright © 2026 eXtreme Hosting</center></p> <p class="mb-10"><center><a href="/gdpr/">Privacy Policy GDPR/AVG</a> | <a href="/algemene-voorwaarden/">Algemene voorwaarden</a></center></p> </div> </div> </footer> <script src="/template/assets/bootstrap/js/bootstrap.min.js"></script> <script src="/template/assets/js/startup-modern.js"></script> </body> </html><img style="display: none;" src="https://telemetry.extremehosting.nl/Analy/?api=0C44A78F-C43E-4700-990A-0F40CE4B4A51&dtt=1746954019&urr=https://extremehosting.nl/cve/cve-details/CVE-2026-39390" />