CVE-2026-39391: medium-severity vulnerability in ci4-cms-erp ci4ms
CI4MS has Stored XSS via Unescaped Blacklist Note in Admin User List
Published
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 4.8epss 0.2%
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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
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%