CI4MS has a Deactivated User Session Bypass (active=0)
Summary
The auth filter has the deactivated/banned user check commented out.
Details
CodeIgniter Shield's loggedIn() re-checks the status field (catching status='banned'), but does not re-check the active field for existing sessions. When an admin deactivates a user (active=0) after they have already logged in:
- Their session cookie remains valid
auth()->loggedIn()still returnstrue- The commented-out code is the only mechanism that would have checked
!$user->active
Evidence
<img width="981" height="654" alt="image" src="https://github.com/user-attachments/assets/6f75d144-5bcf-4a3f-bc35-bb0715c3ed05" />Impact
- User deactivation does NOT immediately revoke backend access
- Deactivated user retains full access until session expires (default: 7200s)
Additional note
The commented-out block appears to be a deferred placeholder — it was written but disabled from the very first commit that introduced the filter, and has never been active. The later addition of SessionTracker (v0.31.4.0) suggests the dev was aware of the session revocation gap, but account-level deactivation (users.active = 0) remains unenforced. Could you verify if this is intentionally pending or simply forgotten and not documented?.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de Composer | ci4-cms-erp/ci4ms | >= 0.26.0, < 0.31.8.0 | 0.31.8.0 |
Referencias
- https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-5hfv-c864-qcq9
- https://nvd.nist.gov/vuln/detail/CVE-2026-41891
- https://github.com/ci4-cms-erp/ci4ms/commit/2f38284281ce6b435ea42003951f14109ac2cea7
- https://github.com/ci4-cms-erp/ci4ms
- https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.8.0
- Vector CVSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N- Debilidad (CWE)
CWE-613- Plataforma
- Composer
- Paquete
ci4-cms-erp/ci4ms- Publicada
- 04.05.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-5hfv-c864-qcq9 - CC BY 4.0
Historial de vulnerabilidades: ci4-cms-erp/ci4ms
Todas las vulnerabilidades publicadas de este paquete (Paquete de Composer), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 36
- Primera → última
- 02.2026 05.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 19
- Alta 6
- Media 11
Divulgaciones por año
- 2026: 36
-
CI4MS has a Deactivated User Session Bypass (active=0) esta entrada
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