CVE-2026-80138: ClipBucket V5 web installer command injection in php_cli_filepath

CVE-2026-80138 · Severity: critical · CVSS 9.8 · Published 2026-08-25

ClipBucket is an open-source video hosting platform. An unauthenticated attacker can exploit the web installer to execute arbitrary commands on the server by submitting a malicious request with an unsanitized php_cli_filepath parameter, potentially taking full control of the hosting environment.

Vendors: MacWarrior.

Quick answers

Is CVE-2026-80138 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-80138 being exploited in the wild.
How severe is CVE-2026-80138?
Critical severity, with a CVSS score of 9.8, published 25 August 2026.
Which products and versions are affected?
MacWarrior ClipBucket V5 5.5.3 and possibly earlier.
Is there a fix for CVE-2026-80138?
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-2026-80138 attacked?
It is attacked over the network.
Am I affected by CVE-2026-80138?
Check whether you run MacWarrior ClipBucket V5 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

The vulnerability is a command injection flaw in ClipBucket V5's web installer. The php_cli_filepath parameter is not properly validated or escaped before being passed to shell execution functions. An unauthenticated attacker can craft a POST request to the installer endpoint with a malicious php_cli_filepath value containing shell metacharacters to execute arbitrary system commands with the privileges of the web server user. The attack requires network access to an uninstalled or reinstalled ClipBucket instance with the installer still enabled, but does not require prior authentication.

Affected products

  • MacWarrior ClipBucket V5 5.5.3 and possibly earlier

Timeline

  • 2026-08-25: disclosed

References

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