RCE in Macwarrior Clipbucket-V5
CVE-2026-80138
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.012 · change: +0.004
Affected products
Weakness classification (CWE)
References
- github.com/MacWarrior/clipbucket-v5 (product)
- github.com/MacWarrior/clipbucket-v5/commit/36e7c6cfd81f62a091d2aeef96a8fc2fc2d8… (patch)
- github.com/MacWarrior/clipbucket-v5/blob/5.5.3-#153/upload/includes/classes/sys… (technical-description)
- github.com/MacWarrior/clipbucket-v5/blob/5.5.3-#153/upload/cb_install/functions… (technical-description)
- www.vulncheck.com/advisories/clipbucket-v5-5.5.1-through-5.5.3-153-os-command-i… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-80138?
- CVE-2026-80138 is a critical-severity vulnerability in Macwarrior Clipbucket-V5, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-08-25.
- How severe is CVE-2026-80138?
- Critical severity. CVSS v3 base score is 9.8 out of 10.