CVE-2026-34572: CWE-284: Improper Access Control in ci4-cms-erp ci4ms
CI4MS, a CodeIgniter 4-based CMS skeleton, had a critical improper access control vulnerability prior to version 0. 31. 0. 0. The application did not revoke active user sessions immediately when an account was deactivated, allowing users with deactivated accounts to maintain access indefinitely until manual logout. This flaw arises because account state changes are only enforced during login, not for existing sessions, and there is no session expiration mechanism. The vulnerability breaks the intended access control policy and can lead to persistent unauthorized access. This issue has been fixed in version 0. 31. 0.
AI Analysis
Technical Summary
CVE-2026-34572 describes an improper access control vulnerability (CWE-284) in ci4-cms-erp's ci4ms product. The flaw is due to a logic error where active sessions of deactivated accounts are not revoked immediately, as session validation only occurs at login. Without session or account expiration, deactivated users retain access until they log out manually. This results in persistent unauthorized access violating the system's RBAC authorization model. The vulnerability affects versions prior to 0.31.0.0 and has been patched in that release.
Potential Impact
The vulnerability allows users whose accounts have been deactivated to continue accessing the system indefinitely through existing sessions. This persistent unauthorized access compromises confidentiality, integrity, and availability of the system, as indicated by the CVSS score of 8.8 (high severity). The flaw undermines the RBAC enforcement and could allow malicious or revoked users to perform unauthorized actions until they log out.
Mitigation Recommendations
Upgrade to ci4ms version 0.31.0.0 or later, where this issue has been patched. The fix ensures that active sessions are revoked immediately upon account deactivation, enforcing proper access control. Until upgrading, consider manual session invalidation mechanisms if possible. Patch status is confirmed fixed in the official release.
CVE-2026-34572: CWE-284: Improper Access Control in ci4-cms-erp ci4ms
Description
CI4MS, a CodeIgniter 4-based CMS skeleton, had a critical improper access control vulnerability prior to version 0. 31. 0. 0. The application did not revoke active user sessions immediately when an account was deactivated, allowing users with deactivated accounts to maintain access indefinitely until manual logout. This flaw arises because account state changes are only enforced during login, not for existing sessions, and there is no session expiration mechanism. The vulnerability breaks the intended access control policy and can lead to persistent unauthorized access. This issue has been fixed in version 0. 31. 0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-34572 describes an improper access control vulnerability (CWE-284) in ci4-cms-erp's ci4ms product. The flaw is due to a logic error where active sessions of deactivated accounts are not revoked immediately, as session validation only occurs at login. Without session or account expiration, deactivated users retain access until they log out manually. This results in persistent unauthorized access violating the system's RBAC authorization model. The vulnerability affects versions prior to 0.31.0.0 and has been patched in that release.
Potential Impact
The vulnerability allows users whose accounts have been deactivated to continue accessing the system indefinitely through existing sessions. This persistent unauthorized access compromises confidentiality, integrity, and availability of the system, as indicated by the CVSS score of 8.8 (high severity). The flaw undermines the RBAC enforcement and could allow malicious or revoked users to perform unauthorized actions until they log out.
Mitigation Recommendations
Upgrade to ci4ms version 0.31.0.0 or later, where this issue has been patched. The fix ensures that active sessions are revoked immediately upon account deactivation, enforcing proper access control. Until upgrading, consider manual session invalidation mechanisms if possible. Patch status is confirmed fixed in the official release.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-30T16:56:30.998Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69cd93efe6bfc5ba1d0036ee
Added to database: 4/1/2026, 9:53:51 PM
Last enriched: 4/10/2026, 12:11:12 AM
Last updated: 5/15/2026, 3:59:45 AM
Views: 57
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