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.

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
.