Is CVE-2026-30877 actively exploited?

No active exploitation of CVE-2026-30877 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-30877 be exploited remotely?

Yes. CVE-2026-30877 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-30877?

CVE-2026-30877 has a CVSS score of 7.2 (HIGH).

HOME VULNERABILITIESCVE-2026-30877

HIGH

CVE-2026-30877

CWE-78Published: March 31, 2026· Updated: Apr 1, 2026

7.2

CVSS v3.1

EPSS:0.17%probability of exploitation in 30 daysPercentile:38.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-30877 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.