Vulnerability Description
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.5.0, ci4ms Theme::upload extracts user uploaded ZIP archives without validating entry names, allowing an authenticated backend user with the theme create permission to write files to arbitrary filesystem locations (Zip Slip) and achieve remote code execution by dropping a PHP file under the public web root. This issue has been patched in version 0.31.5.0.
Related Weaknesses (CWE)
References
- https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.5.0
- https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-xv3r-vr59-95rg
- https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-xv3r-vr59-95rg
FAQ
What is CVE-2026-41203?
CVE-2026-41203 is a documented vulnerability. CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.5.0, ci4ms Theme::upload extracts us...
How severe is CVE-2026-41203?
CVSS scoring is not yet available for CVE-2026-41203. Check NVD for updates.
Is there a patch for CVE-2026-41203?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.