CI4MS: Unrestricted PHP File Upload via Theme Installation Leads to Authenticated Remote Code Execution_CVE-2026-41587

{
    "lastseen": "",
    "description": "CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. From version 0.26.0.0 to before version 0.31.7.0, a theme upload feature allows any authenticated backend user with theme-upload permission to achieve remote code execution (RCE) by uploading a crafted ZIP file. PHP files inside the ZIP are installed into the web-accessible public/ directory with no extension or content filtering, making them directly executable via HTTP. This issue has been patched in version 0.31.7.0.",
    "published": "2026-05-07T03:14:38.631Z",
    "modified": "2026-05-07T03:14:38.631Z",
    "type": "cve",
    "title": "CI4MS: Unrestricted PHP File Upload via Theme Installation Leads to Authenticated Remote Code Execution",
    "source": "GitHub_M",
    "references": "https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-fw49-9xq4-gmx6\nhttps://github.com/ci4-cms-erp/ci4ms/commit/b969465e71eacd9eb57014ad1fce1fc34fa7bca0",
    "id": "CVE-2026-41587",
    "bulletinFamily": "",
    "cwe": [
        "CWE-434"
    ],
    "cvelist": null,
    "sourceData": "ci4-cms-erp ci4ms >= 0.26.0.0, < 0.31.7.0",
    "sourceHref": "",
    "cvss": {
        "score": 8.6,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "ci4ms",
    "version": ">= 0.26.0.0, < 0.31.7.0",
    "vendor": "ci4-cms-erp",
    "ai_description": "Unrestricted PHP file upload via theme installation leads to authenticated remote code execution",
    "ai_severity": "High",
    "ai_vendor": "ci4-cms-erp",
    "ai_product": "CI4MS",
    "ai_version": "0.26.0.0 to 0.31.7.0",
    "ai_score": 8.6
}