CVE-2026-80138CWE-78command-injection

CVE-2026-80138

Critical · published August 26, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
67.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.2 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.01197 · 67.9th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-08-26T03:17Z
References (5)
https://github.com/MacWarrior/clipbucket-v5 · [email protected]https://github.com/MacWarrior/clipbucket-v5/blob/5.5.3-%23153/upload/cb_install/functions_install.php · [email protected]https://github.com/MacWarrior/clipbucket-v5/blob/5.5.3-%23153/upload/includes/classes/system.class.php · [email protected]https://github.com/MacWarrior/clipbucket-v5/commit/36e7c6cfd81f62a091d2aeef96a8fc2fc2d85dc4 · [email protected]https://www.vulncheck.com/advisories/clipbucket-v5-5.5.1-through-5.5.3-153-os-command-injection-via-installer-php-cli-filepath-parameter · [email protected]
EPSS history
Timeline
  • 27 AUG 06:47Z
    EPSS moved — → 1%
    epss
  • 25 AUG 22:12Z
    ClipBucket V5 5.5.1 through 5.5.3-#153 OS Command Injection via Installer php_cli_filepath Parameter
    cvelistv5