CVE-2026-4591: kalcaddle kodbox fileThumb Endpoint app.php checkBin os command injection

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-23 · updated 2026-06-17
Weakness: CWE-77

Description

A weakness has been identified in kalcaddle kodbox 1.64. This affects the function checkBin of the file /workspace/source-code/plugins/fileThumb/app.php of the component fileThumb Endpoint. Executing a manipulation can lead to os command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

kalcaddle kodbox: 1.64

References

https://vuldb.com/?ctiid.352427
https://vuldb.com/?id.352427
https://vuldb.com/?submit.775470
https://vulnplus-note.wetolink.com/share/3ml5XA0firIa

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