EUVD-2026-17259

| CVE-2026-30877 CRITICAL
2026-03-31 GitHub_M GHSA-m9g7-rgfc-jcm7
9.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Patch Released
Apr 01, 2026 - 02:30 nvd
Patch available
EUVD ID Assigned
Mar 31, 2026 - 01:00 euvd
EUVD-2026-17259
Analysis Generated
Mar 31, 2026 - 01:00 vuln.today
CVE Published
Mar 31, 2026 - 00:45 nvd
CRITICAL 9.1

Tags

Command Injection

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.

Analysis

OS command injection in baserCMS update functionality allows authenticated administrators to execute arbitrary commands on the server with application privileges. Affects baserCMS versions prior to 5.2.3. …

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Remediation

Within 24 hours: Inventory all baserCMS installations and identify current versions. Within 7 days: Upgrade all baserCMS instances to version 5.2.3 or later; if immediate upgrade is not feasible, restrict administrator account access to only trusted personnel and monitor admin activity logs. …

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Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +46
POC: 0

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EUVD-2026-17259 vulnerability details – vuln.today
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