9.1

CVE-2026-21861

Exploit

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Basercms ≫ Basercms Version < 5.2.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.28% 0.809
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.2 1.2 5.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
security-advisories@github.com 9.1 2.3 6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

https://basercms.net/security/JVN_20837860
Vendor Advisory
https://github.com/baserproject/basercms/releases/tag/5.2.3
Release Notes
https://github.com/baserproject/basercms/security/advisories/GHSA-qxmc-6f24-g86g
Vendor Advisory
Exploit