GHSA-m9g7-rgfc-jcm7CriticalCVSS 9.1

baserCMS Update Functionality Vulnerable to OS Command Injection

Published
March 31, 2026
Last Modified
March 31, 2026

🔗 CVE IDs covered (1)

CVE-2026-30877 →

📋 Description

Summary

The latest version of baserCMS (basercms-5.2.2) contains an OS command injection vulnerability (CWE-78) in its update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS.

Details

Please refer to the attached materials. OSコマンドインジェクション（baserCMSのアップデート機能）.pdf

Impact

An authenticated user with administrator privileges in baserCMS can execute OS commands on the server with the privileges of the user account running baserCMS.

🎯 Affected products1

  • composer/baserproject/basercms:<= 5.2.2

🔗 References (5)