ByteOS Network

NVD Vulnerability Details :

CVE-2026-28495

Analyzed

Source-security-advisories@github.com

Published At-10 Mar, 2026 | 20:16

Updated At-12 Mar, 2026 | 18:21

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	9.6	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Primary	3.1	8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Type: Secondary

Version: 3.1

Base score: 9.6

Base severity: CRITICAL

Vector:

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Type: Primary

Version: 3.1

Base score: 8.8

Base severity: HIGH

Vector:

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CPE Matches

getsimple-ce>>getsimple_cms>>Versions up to 3.3.22(inclusive)

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

Weaknesses

CWE ID	Type	Source
CWE-352	Primary	security-advisories@github.com

CWE ID: CWE-352

Type: Primary

Source: security-advisories@github.com

References

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

Hyperlink: https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-92wv-q2jp-qg88

Source: security-advisories@github.com

Resource:

Exploit

Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History