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baserproject/basercms vulnerabilities

Vulnerabilities published for baserproject/basercms in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 56

  1. CVE-2026-30940

    High · CVSS 7.2EPSS 1.08%Fix available

    baserCMS: Path Traversal in Theme File API Leads to Arbitrary File Write and RCE

    baserCMS is a website development framework. Prior to version 5.2.3, a path traversal vulnerability exists in the theme file management API (/baser/api/admin/bc-theme-file/theme_files/add.json) that allows arbitrary file write. An authenticated administrator can include ../ sequences in the path parameter to create a PHP file in an arbitrary directory outside the theme directory, which may result in remote code execution (RCE). This issue has been patched in version 5.2.3.

    • Update to 5.2.3
    Published Updated
  2. CVE-2026-30878

    Medium · CVSS 5.3EPSS 0.45%Fix available

    baserCMS: Mail Form Acceptance Bypass via Public API

    baserCMS is a website development framework. Prior to version 5.2.3, a public mail submission API allows unauthenticated users to submit mail form entries even when the corresponding form is not accepting submissions. This bypasses administrative controls intended to stop form intake and enables spam or abuse via the API. This issue has been patched in version 5.2.3.

    • Update to 5.2.3
    Published Updated
  3. CVE-2026-30877

    Critical · CVSS 9.1EPSS 2.06%Fix available

    baserCMS: OS Command Injection in the baserCMS Update Functionality

    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.

    • Update to 5.2.3
    Published Updated
  4. CVE-2026-21861

    Critical · CVSS 9.1EPSS 2.28%Fix available

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

    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.

    • Update to 5.2.3
    Published Updated
  5. CVE-2025-32957

    High · CVSS 8.7EPSS 0.58%Fix available

    baserCMS: unsafe File Upload Leading to Remote Code Execution (RCE)

    baserCMS is a website development framework. Prior to version 5.2.3, the application's restore function allows users to upload a .zip file, which is then automatically extracted. A PHP file inside the archive is included using require_once without validating or restricting the filename. An attacker can craft a malicious PHP file within the zip and achieve arbitrary code execution when it is included. This issue has been patched in version 5.2.3.

    • Update to 5.2.3
    Published Updated
  6. CVE-2023-43648

    Medium · CVSS 4.9EPSS 0.97%Fix available

    baserCMS Directory Traversal vulnerability in Form submission data management Feature

    baserCMS is a website development framework. Prior to version 4.8.0, there is a Directory Traversal Vulnerability in the form submission data management feature of baserCMS. Version 4.8.0 contains a patch for this issue.

    • Update to 4.8.0
    Published Updated

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