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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-21861

baserCMS: OS Command Injection Leading to Remote Code Execution (RCE)

Description

baserCMS is a website development framework. Prior to version 5.2.3, baserCMS contains an OS command injection vulnerability in the core update functionality. An authenticated administrator can execute arbitrary OS commands on the server due to improper handling of user-controlled input that is directly passed to exec() without sufficient validation or escaping. This issue has been patched in version 5.2.3.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

baserproject basercms

  • < 5.2.3affected

References