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Critical · 9.1 CVE-2026-30877 EUVD-2026-17259GHSA-m9g7-rgfc-jcm7

baserCMS: OS Command Injection in the baserCMS Update Functionality

Published Mar 31, 2026 · Updated Apr 2, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
baserproject basercms < 5.2.3 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist baserproject/basercms < 5.2.3 5.2.3 GHSA-m9g7-rgfc-jcm7

References