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Not in CISA KEV

GHSA-5hfv-c864-qcq9 ci4-cms-erp/ci4ms

Fix: ci4-cms-erp/ci4ms@2f38284

GHSA-5hfv-c864-qcq9 is a CWE-613 vulnerability in ci4-cms-erp/ci4ms. A fix is available for ci4-cms-erp/ci4ms — see the affected versions and patch details below.

CI4MS has a Deactivated User Session Bypass (active=0)

Also known asCVE-2026-41891
Published
May 4, 2026
Updated
May 8, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-5hfv-c864-qcq9.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs19th percentile — riskier than 19% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected
🐘ci4-cms-erp/ci4ms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

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 returns true
  • 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?.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistci4-cms-erp/ci4ms0.26.0&&< 0.31.8.00.31.8.0composer require ci4-cms-erp/ci4ms:^0.31.8.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ci4-cms-erp/ci4ms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update ci4-cms-erp/ci4ms to 0.31.8.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-5hfv-c864-qcq9 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-5hfv-c864-qcq9 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-5hfv-c864-qcq9. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### 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 returns `true` - 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-attachmen
O3 Security · Impact-Aware SCA

Is GHSA-5hfv-c864-qcq9 in your dependencies?

O3 Security finds GHSA-5hfv-c864-qcq9 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-5hfv-c864-qcq9: ci4-cms-erp/ci4ms | O3 Security