CVE-2026-41202— ci4ms Backup::restore is vulnerable to Zip Slip leading to RCE
Possible ATT&CK Techniques 3AI
T1190 · Exploit Public-Facing Application T1059 · Command and Scripting Interpreter T1505.003 · Web ShellAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ci4-cms-erp | ci4ms | < 0.31.5.0 | affected |
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I. Basic Information for CVE-2026-41202
Vulnerability Information
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Vulnerability Title
ci4ms Backup::restore is vulnerable to Zip Slip leading to RCE
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
CI4MS 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CI4MS是Ci4MS开源的一个博客页面管理工具。 CI4MS 0.31.5.0之前版本存在路径遍历漏洞，该漏洞源于Backup::restore提取用户上传的ZIP归档时未验证条目名称，可能导致具有备份创建权限的认证用户写入任意文件系统位置并实现远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ci4-cms-erp | ci4ms | < 0.31.5.0 | - |
II. Public POCs for CVE-2026-41202
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-41202 (1)
Vendor Pages for CVE-2026-41202 (1)
- 🔗 Release Release v0.31.5.0 · ci4-cms-erp/ci4ms · GitHubx_refsource_MISC
Same Patch Batch · ci4-cms-erp · 2026-05-07 · 6 CVEs total
| CVE-2026-41201 | 9.1 CRITICAL | CI4MS: Backup Management Full Account Takeover for All-Roles & Privilege-Escalation via St |
| CVE-2026-41890 | CI4MS: Arbitrary Database Table Drop via Theme deleteProcess | |
| CVE-2026-41203 | ci4ms Theme::upload is vulnerable to Zip Slip leading to RCE | |
| CVE-2026-41587 | CI4MS: Unrestricted PHP File Upload via Theme Installation Leads to Authenticated Remote C | |
| CVE-2026-41891 | CI4MS: Deactivated User Session Bypass (active=0) |
IV. Related Vulnerabilities
Same product: ci4ms
- CVE-2026-41891
CI4MS: Deactivated User Session Bypass (active=0) - CVE-2026-41890
CI4MS: Arbitrary Database Table Drop via Theme deleteProcess - CVE-2026-41203
ci4ms Theme::upload is vulnerable to Zip Slip leading to RCE - CVE-2026-41201
CI4MS: Backup Management Full Account Takeover for All-Roles - CVE-2026-41587
CI4MS: Unrestricted PHP File Upload via Theme Installation L
Same vendor: ci4-cms-erp
- CVE-2026-41891
CI4MS: Deactivated User Session Bypass (active=0) - CVE-2026-41890
CI4MS: Arbitrary Database Table Drop via Theme deleteProcess - CVE-2026-41203
ci4ms Theme::upload is vulnerable to Zip Slip leading to RCE - CVE-2026-41201
CI4MS: Backup Management Full Account Takeover for All-Roles - CVE-2026-41587
CI4MS: Unrestricted PHP File Upload via Theme Installation L
Same weakness: CWE-22
- CVE-2026-11911
Simple File List <= 6.3.7 - Unauthenticated Arbitrary File D - CVE-2026-9843
Database for Contact Form 7, WPforms, Elementor forms <= 1.5 - CVE-2026-48129
Kestra task inputFiles accepts traversal filenames for worke - CVE-2026-49342
YARD static cache reads raw traversal paths before router sa - CVE-2026-49340
gonic has arbitrary file write in createPlaylist: any authen
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