Medium severity · published Mar 23, 2026
CVE-2026-4591
kalcaddle kodbox fileThumb Endpoint app.php checkBin os command injection
4.7
CVSS
3.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.5% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KO
kodbox · kalcaddle
1.64 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4591
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4591
vuldb.com
https://vuldb.com/?ctiid.352427
vuldb.com
https://vuldb.com/?id.352427
vuldb.com
https://vuldb.com/?submit.775470
vulnplus-note.wetolink.com
https://vulnplus-note.wetolink.com/share/3ml5XA0firIa
More from kodbox
9.8
CVE-2023-6849
kalcaddle kodbox app.php cover server-side request forgery
9.8
CVE-2023-6848
kalcaddle kodbox index.class.php check command injection
8.8
CVE-2026-1066
kalcaddle kodbox Compression zip command injection
6.3
CVE-2026-8753
kalcaddle Kodbox fileThumb Plugin VideoResize.class.php parseVideoInfo command injection
6.3
CVE-2026-4589
kalcaddle kodbox fileGet Endpoint editor.class.php PathDriverUrl server-side request forgery
