CVE-2026-4591

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.

CVSS v4.0

2.0 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

4.7 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0

5.8 MEDIUMAV:N/AC:L/Au:M/C:P/I:P/A:P

EPSS

3.45% chance of exploitation in the next 30 days, 88th percentile

Published

2026-03-23

Proof-of-concept exploits (1)

• https://vulnplus-note.wetolink.com/share/3ml5XA0firIa

References

• CVE Record
• NVD entry

Related

• CVE-2026-4590
• CVE-2026-4592
• CVE-2026-4589
• CVE-2026-4593
• CVE-2026-4588
• CVE-2026-4594