CVE-2026-35035: CI4-CMS-ERP CI4MS

Critical severity, CVSS 9.0. EPSS: 0.6% chance of exploitation in the next 30 days.

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.2.0, the application fails to properly sanitize user-controlled input within System Settings – Company Information. Several administrative configuration fields accept attacker-controlled input that is stored server-side and later rendered without proper output encoding. These values are persisted in the database and rendered unsafely on public-facing pages only, such as the main landing page. There is no execution in the administrative dashboard—the vulnerability only impacts the public frontend. This vulnerability is fixed in 0.31.2.0.

Affected products

• CI4-CMS-ERP CI4MS: before 0.31.2.0 (fixed in 0.31.2.0)

Published 2026-04-06. Last modified 2026-06-17.