Arbitrary file upload in Kalcaddle Kodbox
CVE-2026-4830
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.
EPSS: 0.003 (17.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Kalcaddle Kodbox — versions 1.64
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (exploit)
Frequently asked questions
- What is CVE-2026-4830?
- CVE-2026-4830 is a medium-severity vulnerability in Kalcaddle Kodbox, classified under Improper Access Control. CVSS score: 5.6/10. Published 2026-03-26.
- How severe is CVE-2026-4830?
- Medium severity. CVSS v3 base score is 5.6 out of 10.