CVE-2026-4830— kalcaddle kodbox Public Share userShare.class.php add privilege escalation
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I. Basic Information for CVE-2026-4830
Vulnerability Information
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Vulnerability Title
kalcaddle kodbox Public Share userShare.class.php add privilege escalation
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was identified in kalcaddle kodbox 1.64. This issue affects the function Add of the file app/controller/explorer/userShare.class.php of the component Public Share Handler. Such manipulation leads to unrestricted upload. The attack can be executed remotely. This attack is characterized by high complexity. The exploitability is assessed as difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
危险类型文件的不加限制上传
Source: NVD (National Vulnerability Database)
Vulnerability Title
Kalcaddle Kodbox 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kalcaddle Kodbox是中国可道云（Kalcaddle）公司的一个私有云存储与在线协同办公平台。 kalcaddle kodbox 1.64版本存在代码问题漏洞，该漏洞源于对文件app/controller/explorer/userShare.class.php中Add函数的操作导致上传不受限制，可能导致任意文件上传。
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
II. Public POCs for CVE-2026-4830
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- Submit #775479: Kodbox 1.64 Unrestricted Uploadthird-party-advisory
- CVE-2026-4830 kalcaddle kodbox Public Share userShare.class.php add unrestricted uploadvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-4830
IV. Related Vulnerabilities
Same product: kodbox
- CVE-2026-5618
kalcaddle kodbox shareMake/shareCheck server-side request fo - CVE-2026-4831
kalcaddle kodbox Password-protected Share auth.class.php can - CVE-2026-4592
kalcaddle kodbox Password Login index.class.php tfaVerify im - CVE-2026-4591
kalcaddle kodbox fileThumb Endpoint app.php checkBin os comm - CVE-2026-4590
kalcaddle kodbox loginSubmit API index.class.php cross-site
Same vendor: kalcaddle
- CVE-2026-5618
kalcaddle kodbox shareMake/shareCheck server-side request fo - CVE-2026-4831
kalcaddle kodbox Password-protected Share auth.class.php can - CVE-2026-4592
kalcaddle kodbox Password Login index.class.php tfaVerify im - CVE-2026-4591
kalcaddle kodbox fileThumb Endpoint app.php checkBin os comm - CVE-2026-4590
kalcaddle kodbox loginSubmit API index.class.php cross-site
Same weakness: CWE-434
- CVE-2021-47943
TextPattern CMS 4.8.7 Remote Code Execution via File Upload - CVE-2021-47937
e107 CMS 2.3.0 Authenticated Remote Code Execution via Theme - CVE-2026-41517
Emlog: Remote Code Execution via Malicious Plugin Upload - CVE-2026-6692
Slider Revolution 7.0.0 - 7.0.10 - Authenticated (Subscriber - CVE-2026-41587
CI4MS: Unrestricted PHP File Upload via Theme Installation L
V. Comments for CVE-2026-4830
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