Is CVE-2026-8753 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-8753 being exploited in the wild.

How severe is CVE-2026-8753?

Medium severity, with a CVSS score of 6.3, published 17 May 2026.

Is there a fix for CVE-2026-8753?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-8753 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-8753?

Check whether you run Kalcaddle Kodbox at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-8753: Kalcaddle Kodbox command injection in fileThumb plugin

CVE-2026-8753 · Severity: medium · CVSS 6.3 · Published 2026-05-17

Kalcaddle Kodbox, a web-based document management and collaboration platform, contains a security flaw in its video thumbnail processing component. An attacker can exploit this to run unauthorized commands on the server hosting the application. This could lead to a full system compromise, data theft, or disruption of business operations. The vulnerability is currently public, and the vendor has not yet released a fix.

Technologies: Kalcaddle Kodbox. Vendors: Kalcaddle.

Quick answers

Is CVE-2026-8753 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-8753 being exploited in the wild.
How severe is CVE-2026-8753?: Medium severity, with a CVSS score of 6.3, published 17 May 2026.
Which products and versions are affected?: Kalcaddle Kodbox up to 1.64.
Is there a fix for CVE-2026-8753?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-8753 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-8753?: Check whether you run Kalcaddle Kodbox at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A command injection vulnerability exists in Kalcaddle Kodbox versions up to 1.64 within the fileThumb plugin. The flaw is located in the parseVideoInfo function of the /workspace/source-code/plugins/fileThumb/lib/VideoResize.class.php file. The application fails to properly sanitize the 'ffmpegBin' argument before passing it to a system shell, allowing an authenticated remote attacker to execute arbitrary commands. While the attack requires low privileges (PR:L), the exploit has been publicly disclosed. As of the advisory date, the vendor has not responded to the disclosure, and no patch is currently available.

Affected products

kalcaddle Kodbox up to 1.64

Timeline

2026-05-17: advisory: Vulnerability disclosed via VulDB and NVD
2026-05-17: disclosed: Public exploit code has been disclosed

References

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