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.

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…

EPSS: 0.001 (18.0th 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

VDB-353127 | kalcaddle kodbox Public Share userShare.class.php add privilege escalation (technical-description, vdb-entry)
VDB-353127 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
Submit #775479 | Kodbox 1.64 Unrestricted Upload (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.