# CVE-2026-34570: CI4MS: Account Deletion Module Grants Full Persistent Unauthorized Access for All‑Roles via Improper Session Invalidation (Logic Flaw)

Source: https://junglewise.ai/threats/cve-2026-34570-ci4ms-account-deletion-module-grants-full-persistent-unauthorized  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-01  
License: CC BY 4.0 with a link back

CVE-2026-34570 · Severity: high · CVSS 8.8 · Published 2026-04-01

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.0.0, the application fails to immediately revoke active user sessions when an account is deleted. Due to a logic flaw in the backend design, account state changes are enforced only during authentication (login), not for already-established sessions. The system implicitly assumes that authenticated users remain trusted for the lifetime of their session. There is no session expiration or account expiration mechanism in place, causing deleted accounts to retain indefinite access until the user manually logs out. This behavior breaks the intended access control policy and results in persistent unauthorized access. This issue has been patched in version 0.31.0.0.

Technologies: [Ci4-Cms-Erp Ci4ms](https://junglewise.ai/threats/technologies/ci4-cms-erp-ci4ms-1), [ci4-cms-erp/ci4ms (Packagist)](https://junglewise.ai/threats/technologies/ci4-cms-erp-ci4ms). Vendors: [Ci4-Cms-Erp](https://junglewise.ai/threats/vendors/ci4-cms-erp), [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2026-34570 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-34570 being exploited in the wild.

**How severe is CVE-2026-34570?** High severity, with a CVSS score of 8.8, published 1 April 2026.

**Which products and versions are affected?** ci4-cms-erp/ci4ms (Packagist) ECOSYSTEM:introduced=0,fixed=0.31.0.0.

**Is there a fix for CVE-2026-34570?** Yes. ci4-cms-erp/ci4ms (Packagist): upgrade to 0.31.0.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-34570?** Check whether you run Ci4-Cms-Erp Ci4ms or ci4-cms-erp/ci4ms (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- ci4-cms-erp/ci4ms (Packagist): upgrade to 0.31.0.0 or later

  ```sh
  composer require ci4-cms-erp/ci4ms:^0.31.0.0
  ```


## Affected products

- Ci4-Cms-Erp Ci4ms
- ci4-cms-erp/ci4ms (Packagist) ECOSYSTEM:introduced=0,fixed=0.31.0.0

## Identifiers

- CVE-2026-34570
- GHSA-4vxv-4xq4-p84h

## Related threats

- [ci4-cms-erp CI4MS stored XSS in Pages module](https://junglewise.ai/threats/cve-2026-45270-ci4-cms-erp-ci4ms-stored-xss-in-pages-module)
- [ci4-cms-erp CI4MS file deletion and rename in Fileeditor module](https://junglewise.ai/threats/cve-2026-45139-ci4-cms-erp-ci4ms-file-deletion-and-rename-in-fileeditor-module)
- [ci4-cms-erp ci4ms stored XSS in Blog and Pages content](https://junglewise.ai/threats/cve-2026-45138-ci4-cms-erp-ci4ms-stored-xss-in-blog-and-pages-content)
- [CI4MS has a Deactivated User Session Bypass (active=0)](https://junglewise.ai/threats/cve-2026-41891-ci4ms-has-a-deactivated-user-session-bypass-active-0)
- [CI4MS Vulnerable to Arbitrary Database Table Drop via Theme deleteProcess](https://junglewise.ai/threats/cve-2026-41890-ci4ms-vulnerable-to-arbitrary-database-table-drop-via-theme)