{"id":"CVE-2026-27599","summary":"CI4MS: System Settings (Mail Settings) Full Platform Compromise & Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSS","details":"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.","aliases":["GHSA-66m2-v9v9-95c3"],"modified":"2026-04-10T05:38:27.806136Z","published":"2026-03-30T20:24:08.968Z","database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27599.json","cwe_ids":["CWE-79"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27599.json"},{"type":"ADVISORY","url":"https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-66m2-v9v9-95c3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27599"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ci4-cms-erp/ci4ms","events":[{"introduced":"0"},{"fixed":"954622ef3d8527cde0b66b8460c26cb5cd0bab15"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"0.31.0.0"}]}}],"versions":["0.21.0","0.21.1","0.21.2","0.21.3","0.21.3.1","0.21.3.2","0.21.3.3","0.21.3.4","0.21.3.5","0.21.3.6","0.21.3.7","0.23.0.0","0.23.1.0","0.24.0.0","0.24.0.16","0.24.0.18","0.24.0.19","0.24.0.20","0.24.0.27","0.24.0.42","0.24.0.45","0.24.0.60","0.25.0.0","0.25.0.1","0.25.0.2","0.25.0.30","0.25.0.39","0.25.0.43","0.25.1.0","0.25.2.0","0.25.3.0","0.26.0.0","0.26.1.0","0.26.2.0","0.26.3.0","0.26.3.1","0.26.3.2","0.26.3.3","0.26.3.4","0.27.0.0","0.28.0.0","0.28.3.0","0.28.4.0","0.28.5.0","0.28.6.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27599.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L"}]}