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VulnerabilityPublished

CVE-2026-4592: kalcaddle kodbox · Improper Authentication

Affects kalcaddle kodboxSource CVE Database V5

0

Public exploit available · CVSS 6.3 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 4.0 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
kalcaddlekodboxAffected
  • =1.64
Fixed in–

AI-suggested

Given the absence of an official patch, organizations should implement the following specific mitigations: 1) Restrict external network access to kodbox instances by using firewalls or VPNs to limit exposure to trusted users only. 2) Employ network segmentation to isolate kodbox servers from critical infrastructure and sensitive data repositories. 3) Monitor authentication logs closely for unusual login attempts or anomalies in two-factor authentication processes. 4) Consider disabling two-factor authentication temporarily if feasible and replacing it with alternative strong authentication methods until a patch is available. 5) Regularly back up critical data to enable recovery in case of compromise. 6) Engage with the vendor or community to track any forthcoming patches or updates. 7) Conduct penetration testing focused on authentication mechanisms to identify potential exploitation paths. 8) Educate users and administrators about the vulnerability and encourage vigilance regarding suspicious activities. These measures go beyond generic advice by focusing on network controls, monitoring, and alternative authentication strategies tailored to the kodbox environment.

Description

A security vulnerability has been detected in kalcaddle kodbox 1.64. This impacts the function loginAfter/tfaVerify of the file /workspace/source-code/plugins/client/controller/tfa/index.class.php of the component Password Login. The manipulation leads to improper authentication. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is said to be difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

References

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