CVE-2026-41587: high-severity vulnerability in ci4-cms-erp ci4ms
CI4MS: Unrestricted PHP File Upload via Theme Installation Leads to Authenticated Remote Code Execution
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.6%
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. From version 0.26.0.0 to before version 0.31.7.0, a theme upload feature allows any authenticated backend user with theme-upload permission to achieve remote code execution (RCE) by uploading a crafted ZIP file. PHP files inside the ZIP are installed into the web-accessible public/ directory with no extension or content filtering, making them directly executable via HTTP. This issue has been patched in version 0.31.7.0.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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-2026-41203CRITICALci4ms 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%CVE-2026-34570HIGHCI4MS: Account Deletion Module Full Persistent Unauthorized Access for All‑Roles via Improper Session Invalidation (Logic Flaw)EPSS 0.5%