CVE-2026-80138Network attack vector

Unauthenticated command execution via unescaped PHP path

Published Aug 25, 2026 · Updated Aug 25, 2026

OS command injection in ClipBucket V5 5.5.1 through 5.5.3-#153 allows remote attackers to execute commands through its web installer. The installer passes the php_cli_filepath POST value to System::get_php_cli_info(), which concatenates it into an exec() command without path validation or shell quoting. No authentication or user interaction is required, but the installer must be reachable and PHP's exec function enabled; commands run as the web server user.

CVSS severity9.8
Critical
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in ClipBucket V5 5.5.1 through 5.5.3-#153 allows remote attackers to execute commands through its web installer. The installer passes the php_cli_filepath POST value to System::get_php_cli_info(), which concatenates it into an exec() command without path validation or shell quoting. No authentication or user interaction is required, but the installer must be reachable and PHP's exec function enabled; commands run as the web server user.

The record

CVE
CVE-2026-80138
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
MacWarrior
Product
ClipBucket V5
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.5.1 <=5.5.3-#153

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MacWarrior · ClipBucket V5version=5.5.1 <=5.5.3-#153

Published CVSS scores

9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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