Arbitrary File Upload Affecting ci4-cms-erp/ci4ms package, versions >=0.26.0.0, <0.31.7.0
Threat Intelligence
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The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-CI4CMSERPCI4MS-16348427
- published3 May 2026
- disclosed29 Apr 2026
- creditdapickle
Introduced: 29 Apr 2026
CVE-2026-41587 (opens in a new tab)How to fix?
Upgrade ci4-cms-erp/ci4ms to version 0.31.7.0 or higher.
Overview
ci4-cms-erp/ci4ms is a composer create-project ci4-cms-erp/ci4ms
Affected versions of this package are vulnerable to Arbitrary File Upload via the install_theme_from_tmp process. An attacker can execute arbitrary PHP code on the server by uploading a specially crafted ZIP file containing malicious PHP files, which are then placed in web-accessible directories without proper validation. This allows the attacker to access and execute these files remotely through HTTP requests. This is only exploitable if a backend user has been granted theme upload permission.