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CVE-2026-30877criticalCWE-78

baserCMS: OS Command Injection in the baserCMS Update Functionality

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.1epss 1.5%
exploitation probability
1.5%top 27% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected products
baserproject · basercms