CVE-2026-80138: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in MacWarrior clipbucket-v5
Description
ClipBucket V5 version 5.5.1 contains an OS command injection vulnerability in its web installer. The vulnerability arises because the php_cli_filepath parameter is not properly validated or escaped before being passed to shell execution. This allows unauthenticated attackers to execute arbitrary commands as the web server user by submitting a crafted POST request to the installer. The vulnerability has a critical severity with a CVSS score of 9.2.
CVSS v4.0
Score 9.2critical
Affected software
MacWarrior
clipbucket-v5
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-80138 is an OS command injection vulnerability in MacWarrior's ClipBucket V5 web installer (version 5.5.1). The flaw is due to improper neutralization of special elements in the php_cli_filepath parameter, which is passed to shell execution without adequate validation or escaping. This enables unauthenticated remote attackers to execute arbitrary OS commands with the privileges of the web server user by sending a specially crafted POST request to the installer endpoint.
Potential Impact
Successful exploitation allows unauthenticated attackers to execute arbitrary commands on the server with the same privileges as the web server user. This can lead to full system compromise, data theft, or further attacks within the affected environment. The vulnerability is rated critical with a CVSS 4.0 score of 9.2, indicating high impact and ease of exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Until a patch is available, restrict access to the web installer interface and monitor for suspicious POST requests targeting the php_cli_filepath parameter.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-25T20:23:31.117Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8e15bfacd9273b49c852ad
Added to database: 08/25/2026, 22:22:55 UTC
Last enriched: 09/09/2026, 20:37:46 UTC
Last updated: 10/08/2026, 18:48:49 UTC
Views: 70
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