CVE-2026-41202: CI4MS Backup::restore is vulnerable to Zip Slip leading to RCE

CVE-2026-41202 · Severity: medium · CVSS 4 · Published 2026-05-07

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.5.0, ci4ms Backup::restore extracts user uploaded ZIP archives without validating entry names, allowing an authenticated backend user with the backup create permission to write files to arbitrary filesystem locations (Zip Slip) and achieve remote code execution by dropping a PHP file under the public web root. This issue has been patched in version 0.31.5.0.

Technologies: ci4-cms-erp/ci4ms (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2026-41202 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-41202 being exploited in the wild.
How severe is CVE-2026-41202?
Medium severity, with a CVSS score of 4, published 7 May 2026.
Which products and versions are affected?
ci4-cms-erp/ci4ms (Packagist) ECOSYSTEM:introduced=0,fixed=0.31.5.0.
Is there a fix for CVE-2026-41202?
Yes. ci4-cms-erp/ci4ms (Packagist): upgrade to 0.31.5.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-41202?
Check whether you run 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 0.31.5.0 or later
    composer require ci4-cms-erp/ci4ms:^0.31.5.0

Affected products

  • ci4-cms-erp/ci4ms (Packagist) ECOSYSTEM:introduced=0,fixed=0.31.5.0

Identifiers

  • CVE-2026-41202
  • GHSA-xp9f-pvvc-57p4

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