Command Injection Vulnerability in kalcaddle Kodbox FileThumb Plugin
CVE-2026-8753

5.3MEDIUM

Key Information:

Vendor

Kalcaddle

Status
Kodbox
Vendor
CVE Published:
17 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8753?

A command injection vulnerability has been identified in the kalcaddle Kodbox fileThumb Plugin up to version 1.64. This flaw occurs within the parseVideoInfo function located in the VideoResize.class.php file. An attacker can exploit this vulnerability by manipulating the ffmpegBin argument, allowing for remote exploitation of the system. Despite earlier notifications to the vendor regarding this issue, no response has been recorded, highlighting the potential risk that users face if they continue to utilize this affected product.

Affected Version(s)

Kodbox 1.0

Kodbox 1.1

Kodbox 1.2

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-2026-8753 - Proof of Concept

References

https://vuldb.com/vuln/364380
vdb-entrytechnical-description
https://vuldb.com/vuln/364380/cti
signaturepermissions-required
https://vuldb.com/submit/810109
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
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 CNA Team
.