CVE-2026-27599: medium-severity vulnerability in ci4-cms-erp ci4ms
CI4MS: System Settings (Mail Settings) Full Platform Compromise & Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSS
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.7epss 0.4%
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 within System Settings – Mail Settings. Several configuration fields, including Mail Server, Mail Port, Email Address, Email Password, Mail Protocol, and TLS settings, accept attacker-controlled input that is stored server-side and later rendered without proper output encoding. This issue has been patched in version 0.31.0.0.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Affected products
ci4-cms-erp · ci4msRelated CVEs — ci4-cms-erp ci4ms
In the same product, most dangerous first.
CVE-2026-25510CRITICALCI4MS Vulnerable to Remote Code Execution (RCE) via Arbitrary File Creation and Save in File EditorEPSS 0.9%CVE-2026-41202CRITICALci4ms Backup::restore is vulnerable to Zip Slip leading to RCEEPSS 0.7%CVE-2026-41587HIGHCI4MS: Unrestricted PHP File Upload via Theme Installation Leads to Authenticated Remote Code ExecutionEPSS 0.6%CVE-2026-41203CRITICALci4ms Theme::upload is vulnerable to Zip Slip leading to RCEEPSS 0.6%CVE-2026-39394HIGHCI4MS has an .env CRLF Injection via Unvalidated `host` Parameter in Install ControllerEPSS 0.5%CVE-2026-34572HIGHCI4MS: Account Deactivation Module Full Persistent Unauthorized Access for All‑Roles via Improper Session Invalidation (Logic Flaw)EPSS 0.5%