Improper Authentication Vulnerability in Kalcaddle Kodbox 1.64
CVE-2026-4831

6.3MEDIUM

Key Information:

Vendor

Kalcaddle

Status
Kodbox
Vendor
CVE Published:
26 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4831?

A vulnerability exists in Kalcaddle Kodbox version 1.64 that compromises its Password-protected Share Handler feature. This flaw allows attackers to carry out remote manipulations in the application's authentication process, particularly in the 'can' function located in /workspace/source-code/app/controller/explorer/auth.class.php. The exploit's complexity is notably high, making it challenging to execute; however, it has been publicly disclosed, raising concerns of potential exploitation. Despite early contact, the vendor has not responded to alerts regarding this security issue.

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Affected Version(s)

kodbox 1.64

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-4831 - Proof of Concept

References

https://vuldb.com/?id.353128
vdb-entrytechnical-description
https://vuldb.com/?ctiid.353128
signaturepermissions-required
https://vuldb.com/?submit.775502
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

vulnplusbot (VulDB User)
VulDB
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