Auth bypass in Kalcaddle Kodbox
CVE-2026-4831
A security flaw has been discovered in kalcaddle kodbox 1.64. Impacted is the function can of the file /workspace/source-code/app/controller/explorer/auth.class.php of the component Password-protected Share Handler. Performing a manipulation results in improper authentication. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is considered difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Broken Authentication
EPSS: 0.005 (40.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
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-2026-4831?
- CVE-2026-4831 is a low-severity vulnerability in Kalcaddle Kodbox, classified under Improper Authentication. CVSS score: 3.7/10. Published 2026-03-26.
- How severe is CVE-2026-4831?
- Low severity. CVSS v3 base score is 3.7 out of 10.