CVE-2026-80138

CRITICAL

ClipBucket V5's web installer fails to properly validate or escape the php_cli_filepath parameter before passing it to shell execution. Unauthenticated attackers can submit a crafted POST request to the installer with a malicious php_cli_filepath value to execute arbitrary commands as the web server user.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 8/25/2026Modified: 8/26/2026

Related Intelligence (1)

CRITICALVulnerability

NVD CRITICAL: CVE-2026-80138 — ClipBucket V5's web installer fails to properly validate or escape the php_cli_f...

ClipBucket V5's web installer fails to properly validate or escape the php_cli_filepath parameter before passing it to shell execution. Unauthenticated attackers can submit a crafted POST request to the installer with a malicious php_cli_filepath value to execute arbitrary commands as the web server user.

CVE-2026-80138
NIST NVD

References (5)

https://github.com/MacWarrior/clipbucket-v5https://github.com/MacWarrior/clipbucket-v5/blob/5.5.3-%23153/upload/cb_install/functions_install.phphttps://github.com/MacWarrior/clipbucket-v5/blob/5.5.3-%23153/upload/includes/classes/system.class.phphttps://github.com/MacWarrior/clipbucket-v5/commit/36e7c6cfd81f62a091d2aeef96a8fc2fc2d85dc4https://www.vulncheck.com/advisories/clipbucket-v5-5.5.1-through-5.5.3-153-os-command-injection-via-installer-php-cli-filepath-parameter