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 0.31.4.0, the blacklist (ban) note parameter in UserController::ajax_blackList_post() is stored in the database without sanitization and rendered into an HTML data-note attribute without escaping. An admin with blacklist privileges can inject arbitrary JavaScript that executes in the browser of any other admin who views the user management page. This vulnerability is fixed in 0.31.4.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ci4-Cms-Erp | Ci4Ms | < 0.31.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-7cm9-v848-cfh2ExploitVendor Advisory
- https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-7cm9-v848-cfh2ExploitVendor Advisory
FAQ
What is CVE-2026-39391?
CVE-2026-39391 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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 blacklist (ban) note parameter in U...
How severe is CVE-2026-39391?
CVE-2026-39391 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-39391?
Check the references section above for vendor advisories and patch information. Affected products include: Ci4-Cms-Erp Ci4Ms.