CVE-2026-28495

GetSimple CMS is a content management system. The massiveAdmin plugin (v6.0.3) bundled with GetSimpleCMS-CE v3.3.22 allows an authenticated administrator to overwrite the gsconfig.php configuration file with arbitrary PHP code via the gsconfig editor module. The form lacks CSRF protection, enabling a remote unauthenticated attacker to exploit this via Cross-Site Request Forgery against a logged-in admin, achieving Remote Code Execution (RCE) on the web server.

CVSS v3 9.6 CRITICAL

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-92wv-q2jp-qg88	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:getsimple-ce:getsimple_cms:*:*:*:*:community:*:*:*

History

No history.

Information

Published : 2026-03-10 20:16

Updated : 2026-03-12 18:21

NVD link : CVE-2026-28495

Mitre link : CVE-2026-28495

CVE.ORG link : CVE-2026-28495

JSON object : View

Products Affected

getsimple-ce

getsimple_cms

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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