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 0.31.0.0, the application fails to properly sanitize user-controlled input when creating or editing blog posts within the Categories section. An attacker can inject a malicious JavaScript payload into the Categories content, which is then stored server-side. This stored payload is later rendered unsafely when the Categories are viewed via blog posts, without proper output encoding, leading to stored cross-site scripting (XSS). This issue has been patched in version 0.31.0.0.
Affected products
ci4-cms-erp: ci4ms
References3
- github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-r33w-c82v… ExploitVendor Advisory
- github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-r33w-c82v… ExploitVendor Advisory
- github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.0.0 Release Notes
Metrics
- CVSS 3.1
-
9.0
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 20 · as of 12 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
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