CVE-2026-39393
Description
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 install route guard in ci4ms relies solely on a volatile cache check (cache('settings')) combined with .env file existence to block post-installation access to the setup wizard. When the database is temporarily unreachable during a cache miss (TTL expiry or admin-triggered cache clear), the guard fails open, allowing an unauthenticated attacker to overwrite the .env file with attacker-controlled database credentials, achieving full application takeover. This vulnerability is fixed in 0.31.4.0.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
ci4-cms-erp/ci4msPackagist | < 0.31.4.0 | 0.31.4.0 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-8rh5-4mvx-xj7jnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-8rh5-4mvx-xj7jghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-39393ghsaADVISORY
- github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.4.0ghsaWEB
News mentions
0No linked articles in our index yet.