CVE-2026-30877

baserCMS: OS Command Injection in the baserCMS Update Functionality

Published Mar 31, 2026 CVSS 3.1 · 9.1 Critical EPSS 1.5% KEV · Not listed
Description
baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the 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. This issue has been patched in version 5.2.3.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-m9g7-rgfc-jcm7 baserCMS Update Functionality Vulnerable to OS Command Injection
History
Type Values Removed Values Added
First Time appeared Baserproject
Baserproject basercms
Vendors & Products Baserproject
Baserproject basercms
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Basercms
Basercms basercms
CPEs cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*
Vendors & Products Basercms
Basercms basercms
Type Values Removed Values Added
Description baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the 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. This issue has been patched in version 5.2.3.
Title baserCMS: OS Command Injection in the baserCMS Update Functionality
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 2, 2026, 2:43 PM
Reserved
Mar 6, 2026, 12:04 AM
Status
Analyzed
Published
Mar 31, 2026, 1:16 AM
Modified
Jun 17, 2026, 10:33 AM